如何使用 "alert" 造句

1. Nations prepare as world health organization raises the alert level .
国内为世卫组织提升警报级别做好准备。
2. And once someone clicks through , you will receive an email alert .
而一旦有人点击,您将收到一封电子邮件的警报。
3. Security forces in india 's biggest cities were put on heightened alert .
在印度各大城市,安全部队提高了警戒级别。
4. The alert among you will realise that the two numbers are identical .
你心中的警觉感将会意识到两个问题是相同的。
5. The president looked weak but alert .
总统显得虚弱但仍然机警。