everything is fine except for one small defect (idiom); the fly in the ointment
Definitions (粵典–words.hk)
語句
形容一樣嘢近乎完美,但係仲有少少缺陷 to be a minor imperfection; to be a fly in the ointment; to be a blemish in something otherwise perfect; to be almost perfect
呢個音樂會好好聽,但係美中不足嘅地方就係太短。
呢个音乐会好好听,但系美中不足嘅地方就系太短。
ni1 go3 jam1 ngok6 wui2 hou2 hou2 teng1, daan6 hai6 mei5 zung1 bat1 zuk1 ge3 dei6 fong1 zau6 hai6 taai3 dyun2. The concert was excellent, but the fly in the ointment was that it was a bit too short.
Definitions (Wiktionary)
phrase, idiomatic
to be almost perfect; to be a fly in the ointment; to be a blemish in an otherwise perfect thing
Definitions (HSK3.0)
HSK3 七一九级词汇表 #2828
Examples (Tatoeba—Mandarin-English)
Mandarin
这张桌子不错,不过有一个美中不足的地方 ﹣ 我的房间放不下它。
這張桌子不錯,不過有一個美中不足的地方 ﹣ 我的房間放不下它。
zhè zhāng zhuō zi bù cuò , bù guò yǒu yí gè měi zhōng bù zú de dì fāng ﹣ wǒ de fáng jiān fàng bu xià tā 。
This table is fine except in one respect - it will not fit into my room.
Mandarin
那家馆子物美价廉,美中不足的是他们糟糕的位置。
那家館子物美價廉,美中不足的是他們糟糕的位置。
nà jiā guǎn zi wù měi jià lián , měi zhōng bù zú de shì tā men zāo gāo de wèi zhi 。
That place's food is great, and their prices are good, but the fly in the ointment is their terrible location.
That place's food is delicious and their prices are low. However, their location isn't good.
Mandarin
唯一美中不足的是如果它要是熟食就好了。
唯一美中不足的是如果它要是熟食就好了。
wéi yī měi zhōng bù zú de shì rú guǒ tā yào shi shú shí jiù hǎo le 。
The only thing that would have made it better is if it was cooked.