首先，把蔬菜切成薄片用来炒。

First, ___slice the vegetables thinly for the stir-fry.

你能帮我把这条面包切片吗？

Could you ___slice this loaf of bread for me?

记得逆着肉的纹理切片，以保持其鲜嫩。

Remember to ___slice the meat against the grain to keep it tender.