constrict|constricted|constricting

冷空气会让血管收缩。

Cold air causes blood vessels to ___constrict.

她紧绷的表情显示出她非常紧张。

Her ___constricted expression revealed how nervous she was.

这件紧身牛仔裤太束缚了，我几乎没法走路。

These skinny jeans are too ___constricting, I can barely walk.