Derivations
n. 发展( derivation的复数形式 ); 起源; 派生; 词源
🗣️ 情景例句
Unless in uniform, he doesn't look like a policeman.
除非穿上制服，要不他看起来不像警察。
I can't tell.
我说不准。
There are some magazines on the television.
电视机上放着几本杂志。