注意!WiFi 的監控能力大增!黑洞質量可能被灌水百倍【泛科學NEWS EP77】

YouTube · PanSci · Native everyday · 2026/09/21
2026/09/21
Speech duration
13min 52s
Unique characters · 322 once
922
Word count
2,903
Average sentence length
9.8
Length
19:36
Unique words · 667 once
1,157
Syllables per minute
322
Script
Traditional 繁
Sentences
453
Difficulty
Beyond ranked vocabularydifficulty

Many of this content's words are outside our ranked vocabulary list — specialised terms or name-like words — so no level reaches 95% word coverage.

How difficulty works
Beyond ranked vocabulary

Many of this content's words are outside our ranked vocabulary list — specialised terms or name-like words — so no level reaches 95% word coverage.

TAGSNative everydayScience

Vocab coverage

The Level you need to know each share of this video’s words. The dark 95% step is its difficulty.

TOCFL coverage

Which TOCFL (TBCL) level each of this video’s words comes from.

  • TOCFL 1 34%
  • TOCFL 2 8%
  • TOCFL 3 7%
  • TOCFL 4 13%
  • TOCFL 5 10%
  • TOCFL 6 7%
  • TOCFL 7 2%
  • Not on TOCFL 19%

Cumulative: TOCFL 1–4 covers 62% of the words, TOCFL 1–6 covers 79%, TOCFL 1–7 covers 81%.

Words to learn first

Pick a level to see the words a learner there needs to understand 95% of this video’s words.

Starting from zero (Beginner), learn 999 words to reach 95% of this video’s words.

The 20 most-used of these 999 words.

WordPinyinMeaning (CC-CEDICT)In videoLevel
的deof; ~'s (possessive particle); (used after an attribute when it modifies a noun); (used at the end of a declarative sentence for emphasis); (used after a noun, verb or adjective to form a nominal expression, as in 皮革的[pi2 ge2 de5] "one made of leather" or 跑堂兒的|跑堂儿的[pao3 tang2 r5 de5] "a waiter (literally, one who runs back and forth in a restaurant)" or 新的[xin1 de5] "new one"); also pr. [di4] or [di5] in poetry and songs; really and truly; a taxi; a cab (abbr. for 的士[di1 shi4]); (bound form) bull's-eye; target149Lv 1
是shìto be (followed by substantives only); correct; right; true; (respectful acknowledgement of a command) very well; (adverb for emphatic assertion); variant of 是[shi4]40Lv 1
在zàito exist; to be alive; (of sb or sth) to be (located) at; (used before a verb to indicate an action in progress)34Lv 1
就jiù(after a suppositional clause) in that case; then; (after a clause of action) as soon as; immediately after; (same as 就是[jiu4 shi4]) merely; nothing else but; simply; just; precisely; exactly; only; as little as; as much as; as many as; to approach; to move towards; to undertake; to engage in; (often followed by 著|着[zhe5]) taking advantage of; (of food) to go with; with regard to; concerning; (pattern: 就[jiu4] ... 也[ye3] ...) even if ... still ...; (pattern: 不[bu4] ... 就[jiu4] ...) if not ... then must be ...27Lv 1
這zhè(pronoun) this; these; (coll.) this; (bound form) this; the (followed by a noun); (bound form) this; these (followed by a classifier) (in this sense, commonly pr. [zhei4], esp. in Beijing)27Lv 1
不bùno; not so; (bound form) not; un-26Lv 1
到dàoto reach; to arrive; to leave for; to go to; to (a place); until (a time); up to (a point); (verb complement indicating arriving at a place or reaching a point); considerate; thoughtful; thorough25Lv 1
人rénperson; people; CL:個|个[ge4],位[wei4]22Lv 1
也yěalso; too; as well; (not ...) either; (used after a verbal or nominal expression X to indicate that X is an extreme or unexpected case) even (X); (literary) particle having functions similar to 啊[a5]; surname Ye21Lv 1
你nǐyou (informal, as opposed to courteous 您[nin2]); you (Note: In Taiwan, 妳 is used to address females, but in mainland China, it is not commonly used. Instead, 你 is used to address both males and females.)21Lv 1

Is this video right for my Chinese?

A 20-minute video from PanSci with 14 minutes of speech at 322 syllables per minute. It's 2,903 words long, using 1,157 different words. Difficulty: Beyond ranked vocabulary — many of its words are outside our ranked vocabulary list, so no level reaches 95% word coverage. Words to learn first include 的, 是, 在.