curdling造句

1、He stood for a long time lost in thought, and at last a curdling smile lit up his swarthy face.
他站在那里沉思了许久，最后一丝狞笑照亮了他黝黑的脸庞。

2、Turning into a solid mass: I waited for her to materialize out of the clogging curdling crowd.
转成固体：我在拥挤的人群中等待着她的出现。

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