Usm
abbr. 水下对地导弹（Underwater-to-Surface Missile）
🗣️ 情景例句
you've made a very strong impression
你已经留下了非常深刻的印象
Cats hide their paws.
大智若愚，大巧若拙。
Words can't express what I felt then.
无法用语言形容我当时的感受。