departure
n. 背离；离开，启程
复数 departures
例句
His departure passed unnoticed.
他神不知、鬼不觉地离开了。
《牛津词典》
It was a radical departure from tradition.
这从根本上违背了传统。
His departure, in fact, went almost unremarked.
事实上，他的离去几乎没被注意到。
《柯林斯英汉双解大词典》
