这个计划虽然已经决定实施了，但是具体细节还需要从长计议。

Although the decision to implement this plan has already been made, the finer points still need to be planned out.

Source: Tatoeba

Sentence Composition

1 这个 zhège
  1. (pronoun) this
  2. (adjective) this
2 计划 jìhuà
  1. plan
  2. project
  3. program
  4. to plan
  5. to map out

classifiers: 個, 項
3 虽然 suīrán although; even though (often used correlatively with 可是 kěshì or 但是 dànshì etc)
=4 已经 yǐjīng already
=4 已经 yǐjìng already
5 决定 juédìng
  1. to decide (to do something)
  2. to resolve
  3. decision
  4. certainly

classifiers: 個, 項
6 实施 shíshī
  1. to implement
  2. to carry out
=7 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=7 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 无 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 了 liǎo)
=7 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=7 了 liào unofficial variant of 瞭 liào
8 但是 dànshì but; however
9 具体 jùtǐ concrete; specific; detailed
10 细节 xìjié details; particulars
=11 还 Huán surname Huan
=11 还 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
=11 还 huán
  1. to pay back
  2. to return
12 需要 xūyào
  1. to need; to want; to demand; to require
  2. needs
13 从长计议 cóngchángjìyì (idiom) to take one's time making a decision; to consider at length