Osha
abbr. 职业安全与卫生条例（Occupational Safety and Health Act）；职业安全和健康署（Occupational Safety &Health Administration）
🗣️ 情景例句
I'm working my way through college.
我靠勤工俭学上大学。
He's concentrating on learning English.
他集中精力学英语。
It's his problem, not yours. Try not to worry.
这是他的问题，而不是你的。尽量不去操心。