人孔是圓的,因為這樣人孔蓋就不會意外地掉進洞裡。

Manholes are round because that way they won't accidentally fall through the hole.

Source: Tatoeba

Sentence Composition

1 人孔 rénkǒng manhole
=2 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=2 shì variant of shì
3 yuán
  1. circle
  2. round
  3. circular
  4. spherical
  5. (of the moon) full
  6. unit of Chinese currency (yuan)
  7. tactful
  8. to make consistent and whole (the narrative of a dream or a lie)
=4 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 de "one made of leather" or 跑堂兒的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. or di in poetry and songs
=4 a taxi; a cab (abbr. for 的士 shì)
=4 really and truly
=4 (bound form) bull's-eye; target
5 因為 yīnwèi
  1. because
  2. owing to
  3. on account of
6 這樣 zhèyàng
  1. this kind of
  2. so
  3. this way
  4. like this
  5. such
7 人孔 rénkǒng manhole
=8 surname Ge
=8 gài
  1. lid
  2. top
  3. cover
  4. canopy
  5. to cover
  6. to conceal
  7. to build
9 jiù
  1. (after a suppositional clause) in that case; then
  2. (after a clause of action) as soon as; immediately after
  3. (same as 就是 jiùshì) merely; nothing else but; simply; just; precisely; exactly
  4. only; as little as
  5. as much as; as many as
  6. to approach; to move towards
  7. to undertake; to engage in
  8. (often followed by zhe) taking advantage of
  9. (of food) to go with
  10. with regard to; concerning
  11. (pattern: jiù ... ...) even if ... still ...
  12. (pattern: ... jiù ...) if not ... then must be ...
10 不會 huì
  1. improbable
  2. unlikely
  3. will not (act, happen etc)
  4. not able
  5. not having learned to do sth
  6. (coll.) (Tw) don't mention it
  7. not at all
11 意外 wài
  1. unexpected
  2. accident
  3. mishap

classifier:

=12 de
  1. -ly
  2. structural particle: used before a verb or adjective, linking it to preceding modifying adverbial adjunct
=12
  1. earth
  2. ground
  3. field
  4. place
  5. land

classifier:

=13 diào
  1. to fall
  2. to drop
  3. to lag behind
  4. to lose
  5. to go missing
  6. to reduce
  7. fall (in prices)
  8. to lose (value, weight etc)
  9. to wag
  10. to swing
  11. to turn
  12. to change
  13. to exchange
  14. to swap
  15. to show off
  16. to shed (hair)
  17. (used after certain verbs to express completion, fulfillment, removal etc)
=13 nuò
  1. (obsolete) to hold; to wield; to bear; to lift
  2. to hold; to wield; to bear; to lift
14 jìn
  1. to go forward
  2. to advance
  3. to go in
  4. to enter
  5. to put in
  6. to submit
  7. to take in
  8. to admit
  9. (math.) base of a number system
  10. classifier for sections in a building or residential compound
=15 dòng
  1. cave
  2. hole
  3. zero (unambiguous spoken form when spelling out numbers)

classifier:

=15 tóng used in 洪洞 Hóngtóng, a county in Shanxi
16
  1. lining
  2. interior
  3. inside
  4. internal
  5. also written