筆 直 bǐ zhí : perfectly straight; straight as a ramrod; bolt upright

不 完 美 bù wán měi : defective; imperfect

不 完 全 中 立 bù wán quán zhōng lì : imperfect neutrality

不 完 善 bù wán shàn : imperfect

不 易 之 論 bù yì zhī lùn : perfectly sound proposition; unalterable truth; irrefutable argument

精 «精» jīng : energy; perfect; excellent; refined; very; proficient

Big5: , Unicode: 7cbe (精),
Links: MT, Cantonese, Ld, Chinese Language

練 [练] liàn : to practice; to train; to perfect (one's skill); to drill

Big5: , Unicode: 7df4 (練),
Links: MT, Cantonese, Ld, Chinese Language

孰 能 生 巧 shú néng shēng qiǎo : practice makes perfect

完 美 wán měi : perfect; perfection; perfectly

完 善 wán shàn : perfect; complete