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
Richard, did you go to the aerobics class, really? Richard
你真的上了有氧运动课吗？
I've never read a more thrilling story.
我没有读过比这更令人战粟的故事。
He usually stays at home with his pet dog.
他通常跟他的爱犬待在家里。