crisis的復數形式是什么

　　crisis例句分享

　　The crisis had a negative effect on trade.

　　這次危機對貿易產生了很壞的影響。

　　What we have here is a crisis situation.

　　我們在這里所面臨的是一個危急局面。

　　Keep a cool head during the crisis.

　　在危急關頭要保持清醒的頭腦。