在化学实验中，我们必须小心处理甲基胺，因为它具有强烈的气味和易燃性。

We must handle ___methylamine carefully in chemical experiments because of its strong odor and flammability.

甲基胺常用于有机合成反应中作为碱性试剂。

___Methylamine is commonly used as a basic reagent in organic synthesis reactions.