Danger classes
[化] 危险等级
🧩 词语组成解析
danger
['dendʒɚ]
n. 危险;危险物，威胁;
n. 级别, 阶级（class复数形式）
🗣️ 情景例句
And good stuff, too.
而且都很精采。
I just dropped in to say goodbye.
我只是来告别的。
The two boys are in the river now.
两个男孩现在在河里。