當水被加熱時，水汽蒸發。

Water evaporates when it is heated.

Source: Tatoeba

Sentence Composition

=1 當 dāng
  1. to be
  2. to act as
  3. manage
  4. withstand
  5. when
  6. during
  7. ought
  8. should
  9. match equally
  10. equal
  11. same
  12. obstruct
  13. just at (a time or place)
  14. on the spot
  15. right
  16. just at
=1 當 dàng
  1. at or in the very same...
  2. suitable
  3. adequate
  4. fitting
  5. proper
  6. to replace
  7. to regard as
  8. to think
  9. to pawn
  10. (coll.) to fail (a student)
=2 水 Shuǐ surname Shui
=2 水 shuǐ
  1. water
  2. (after a name) ... River
  3. to swim (used mostly in 会水 huìshuǐ and 水性 shuǐxìng)
  4. (coll.) lacking in substance; shoddy
  5. (bound form) additional cost; extra income
  6. classifier for washings of a garment
=3 被 bèi
  1. quilt
  2. to cover (with)
  3. (literary) to suffer (a misfortune)
  4. used to indicate passive voice (placed before the doer of the action like "by" in English passive-voice sentences, or, if the doer is not mentioned, before the verb)
  5. (since c. 2009) (sarcastic or jocular) used to indicate that the following word should be regarded as being in air quotes (as in 被旅游 bèilu:yóu to "go on a trip")
=3 被 pī
  1. (obsolete on its own in Standard Chinese) alternative form of 披 (“to cover oneself; to scatter”)
  2. alternative form of 披 (“to cover oneself; to scatter”)
=3 被 bì
  1. alternative form of 彼 (bǐ, “that”)
  2. alternative form of 髲 (bì, “wig”)
=3 被 pì alternative form of 帔
4 加熱 jiārè to heat
=5 時 Shí surname Shi
=5 時 shí
  1. o'clock
  2. time
  3. when
  4. hour
  5. season
  6. period
6 水汽 shuǐqì
  1. water vapor
  2. steam
  3. moisture
7 蒸發 zhēngfā
  1. to evaporate
  2. evaporation