vi.

1. 表現，行為舉止[Q]
   The young lady behaved courageously in the face of danger.

   那位年輕女士面對危險表現得十分勇敢。

2. 行為檢點，聽話，表現好
3. （機器等）開動，運轉
   How is the new machine behaving?

   新機器的性能怎樣？

4. （事物）起某種作用
   The chemical can behave as an acid.

   這種化學製品能起酸的作用。

vt.

1. （後接oneself）使檢點，使守規矩
   Behave yourself!

   規矩點！

2. （後接oneself）使表現得（……）[O]

v.

1. act or conduct oneself in a specified way.
2. (also behave oneself) conduct oneself in accordance with accepted norms.