1、He stood for a long time lost in thought, and at last a curdling smile lit up his swarthy face.
他站在那里沉思了許久，最后一絲獰笑照亮了他黝黑的臉龐。

2、Turning into a solid mass: I waited for her to materialize out of the clogging curdling crowd.
轉成固體：我在擁擠的人群中等待著她的出現。

3、The curdling of the milk is the first step in its digestion.
牛奶的凝結是其被消化的第一步。

curdling翻譯