[口语] “小声一点” 英语怎么说？

小声点儿

Keep it down

“放轻松”  = Take it easy

例句：

Take it easy, man. It's ok.

放轻松，兄弟，没事！

“冷静点” = Calm down

例句：

Calm down, no need to speak so angrily.

冷静点，有话好好说！冒什么火

“淡定”：Keep your hair on（非正式）

例句：

Keep your hair on. We have plenty time.

淡定点，我们的时间足够了