Meaning of chōng fèn:
充分
ample; sufficient; adequate; full
Tā yǒu chōngfèn de shíjiān zhǔnbèi yǎnjiǎng.
他有充分的时间准备演讲。
He has ample time to prepare for the presentation.
Tā wèi zhè cì yǎnjiǎng zuòle chōngfèn zhǔnbèi.
他为这次演讲做了充分准备。
He made sufficient preparations for this presentation.
Wǒmen xūyào chōngfèn zhǔnbèi kǎoshì.
我们需要充分准备考试。
We need to adequately prepare for the exam.
Tā yǐjīng wèi kǎoshì zuòle chōngfèn de zhǔnbèi.
他已经为考试做了充分的准备。
He has already made full preparations for the exam.
fully; to the full
Wǒmen xūyào chōngfèn zhǔnbèi cáinéng chénggōng.
我们需要充分准备才能成功。
We need to prepare fully to succeed.
Wǒmen xūyào chōngfèn lìyòng zhèxiē zīyuán.
我们需要充分利用这些资源。
We need to fully utilize these resources.