🧩 词语组成解析
abbr. 年轻人（young adult）；偏航轴（yaw axis）
mum
['mʌm]
n. 菊花, 沉默\\na. 沉默的\\nvi. 演哑剧\\ninterj. 别说话
🗣️ 情景例句
Notices are displayed on the bus asking people not to smoke.
公共汽车上张贴着请勿吸烟的公告。
Action is the proper fruit of knowledge.
行动是知识的巧果。
Don't try to get up. You shouldn't get up if you're badly hurt.
别起来。受了重伤，你不该起来的。