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
I did my thesis on Sino-American Business Relationship.
我做的论文题目是中美贸易关系。
It's a worthwhile cause.
这是值得为之奋斗的事业。
Look at your clothes! Where have you been?
瞧你们的衣服！你们去哪儿了？