他們到達的確切時間還不明。

The precise time of their arrival is not known.

Source: Tatoeba

Sentence Composition

1 他們 tāmen they; them
2 到達 dàodá to reach; to arrive
3 的確 díquè
  1. really
  2. indeed
=4 切 qiē
  1. to cut; to slice; to carve
  2. (math) tangential
=4 切 qiè
  1. definitely; absolutely (not)
  2. (scoffing or dismissive interjection) Yeah, right.; Tut!
  3. to grind
  4. (bound form) close to
  5. (bound form) eager
  6. to correspond to
  7. (used to indicate that the fanqie 反切 fǎnqiè system should be applied to the previous two characters)
5 時間 shíjiān
  1. (concept of) time
  2. (duration of) time
  3. (point in) time
=6 還 Huán surname Huan
=6 還 hái
  1. still
  2. still in progress
  3. still more
  4. yet
  5. even more
  6. in addition
  7. fairly
  8. passably (good)
  9. as early as
  10. even
  11. also
  12. else
=6 還 huán
  1. to pay back
  2. to return
=6 還 xuán
  1. (obsolete on its own in Standard Chinese) alternative form of 旋 (“to rotate; to turn around”)
  2. (obsolete on its own in Standard Chinese) immediately
  3. (obsolete on its own in Standard Chinese) nimble; agile
  4. alternative form of 旋 (“to rotate; to turn around”)
  5. immediately
  6. nimble; agile
7 不明 bùmíng
  1. not clear
  2. unknown
  3. to fail to understand