Sigmoidal
反曲
🗣️ 情景例句
He insists that politics will affect the human life deeply.
他坚持说政治会对人类的生活产生深远影响。
I will be in between six and eight.
我6点至8点都在。
Most business letters around the world are written in English.
世界上大多数商务信函都是用英语写的。