小声一点
Keep it down
小声_百度翻译
小声
[词典] undertone; in a low voice; under one's breath; still;
[例句]嘘!小声点,孩子们,你们太闹了。Hush, boys, the party's getting noisy.
Please
be
quieter!
Don't
be
too
loud,
please!
对补充:
Sing
a
little
quieter,
please!
lower
your
voice.
或
keep
your
voice
down.
lower your voice
英文不会?百度在线翻译就行