不起作用

The dye doesn't take in cold water.

那种染料在冷水中作用。

What I said made practically no impression on him.

我的话对他简直作用。

The moribund Post Office Advisory Board was replaced.

作用的邮局顾问委员会已被替。

Unfortunately their plan misfired badly.

可惜他们的计划完全作用。

It skills not.

用处, 作用。