例句
the serious problem of unemployment
严重的失业问题
Luckily, the damage was not serious.
还好，损坏不算严重。
Serious crimes have increased dramatically.
重大犯罪案件大幅度增加了。
Oil spills pose a serious threat to marine life.
原油泄漏对海洋生物构成了严重威胁。
The president was in serious trouble .
总统遇到大麻烦了。