Cosec
n. 余割
?? 牛津釋義
cosec
abbr
縮寫 = cosecant.
??? 情景例句
I don't want my tonsils out.
我不想切除扁桃腺。
It's a windy city.
這是一個多風(fēng)的城市。
I have always envied your good luck.
我一直羨慕你的運氣好。