She stood by the stove, sifting the yellow corn meal from her fingers into a kettle of boiling, salted water.

她站在炉子旁边，将手指上的黄色玉米粉筛入一壶沸腾的盐水中。

She stood by the stove, sifting the yellow135 corn meal from her fingers into a kettle of boiling, salted water.

她站在炉子旁边，把手指上的黄色玉米粉筛入一壶沸腾的盐水中。

He brought out the forgotten water pipe and put a kettle of mercury to boil next to the body, whichlittle by little was filling with blue bubbles.

他拿出忘带的水管， 在尸体旁边放了一壶水银烧开， 水银慢慢地冒出蓝色的泡泡。

This I don't think is too difficult to understand, but " fine" means " very good" , and a " kettle of fish" is a big pot full of fish.

这个我觉得不太难理解，但是“fine” 就是“很好” 的意思，“kettle of fish” 就是一大锅鱼。