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
Is this your very first advanced aerobics class?
这是你第一次上有氧运动高级班吗？
I always used to ask him a lot of questions.
我过去总是问他很多问题。
If parents were prepared for this adolescent reaction,
如果家长对青少年的这种反应有思想准备，