海洋的深层仍然几乎未被探索。

The deep layers of the ocean are still almost unexplored.

Source: Tatoeba

Sentence Composition

1 海洋 hǎiyáng ocean

classifier:

=2 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 跑堂儿的 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
=2 a taxi; a cab (abbr. for 的士 shì)
=2 really and truly
=2 (bound form) bull's-eye; target
3 深层 shēncéng
  1. deep layer
  2. deep; deep-seated; underlying
4 仍然 réngrán still; as before; yet
5 几乎 almost; nearly; practically
6 wèi
  1. not yet
  2. did not
  3. have not
  4. not
  5. 8th earthly branch: 1-3 p.m., 6th solar month (7th July-6th August), year of the Sheep
  6. ancient Chinese compass point: 210°
=7 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")
=7
  1. (obsolete on its own in Standard Chinese) alternative form of (“to cover oneself; to scatter”)
  2. alternative form of (“to cover oneself; to scatter”)
=7
  1. alternative form of (bǐ, “that”)
  2. alternative form of (bì, “wig”)
=7 alternative form of
8 探索 tànsuǒ to explore; to probe