pain後面是什麼

1、Chest pains can be a warning signal of heart problems.胸部疼痛可能是心臟病的報警信號。

2、Pain acts as a natural defence mechanism.疼痛算是一種自然防護機制的作用。

3、She was at great pains to stress the advantages of the new system.她極力強調新制度的優點。