他們正在調查這件事。

They are inquiring into the matter.

Source: Tatoeba

Sentence Composition

1 他們 tāmen they; them
2 正在 zhèngzài to be in the process of (doing sth); to be currently ...-ing
3 調查 diàochá
  1. investigation
  2. inquiry
  3. to investigate
  4. to survey
  5. survey
  6. (opinion) poll

classifiers: 項, 個
=4 這 zhè
  1. (pronoun) this; these
  2. (bound form) this; the (followed by a noun)
  3. (bound form) this; these (followed by a classifier) (in this sense, commonly pr. zhèi, esp. in Beijing)
=4 這 zhèi (coll.) this
5 件 jiàn
  1. item
  2. component
  3. classifier for events, things, clothes etc
=6 事 shì
  1. matter
  2. thing
  3. item
  4. work
  5. affair

classifiers: 件, 樁, 回
=6 事 zì
  1. alternative form of 倳 (zì, “to establish”)
  2. alternative form of 剚 (zì, “to stab”)