Leave it at that:

這事就這樣,；到此為止

例句：

We'll never agree, so let's just leave it at that. 

咱們不可能意見一致,，所以這事就這樣吧。

Leave something aside:

To not consider something 不予考慮,；擱置一邊

例句：

Leaving the expense aside, do we actually need a second car? 

且不說費用多少,，我們真的需要第二輛汽車嗎？

Leave somebody /something out (of something):

To not include or mention somebody/something in something 不包括,；不提及

例句： 

She left out a 'm' in 'accommodation'.

她在accommodation一詞中漏掉了一個字母m,。

Song for you（片尾曲）

Aimer - 糸