水乳交融
shuǐ rǔ jiāo róng
to blend perfectly; in complete harmony
Character by character
水shuǐ
water
water
乳rǔ
milk
milk
交jiāo
mingle
mingle
融róng
blend
blend
Example
这部电影里，音乐和画面水乳交融，看得人很感动。
In this film the music and the images blend perfectly; it is very moving.
Tone: positive (praise).
Usage and origin
For people who get on perfectly or things that merge seamlessly. Its opposite is 水火不容, as incompatible as fire and water.
Learn this in Lesson 10 · HSK 5: 五十六个民族 (The 56 ethnic groups)
A dialogue, a reading, word cards with audio and a drill that uses it, in Learn Chinese with Bao. The first lessons of every level are free.
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