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'll go upstairs and stay with him until he falls asleep again.
我上楼去陪他， 直到他又睡着。
My brother is twice as tall as your sister.
我弟弟比你妹妹高一倍。
I'm very sorry, sir.You must get off the bus.None of our passengers can change this note.
非常抱歉，先生。您必须下车。我们的乘客中没人能换开这张钞票。