quietly 
安静地 ☊ → 平静地 ☊ → 轻轻地 ☊ → 
quietly 
lặng lẽ like: quietly → →
1405
You're speaking very quietly. I can't hear you. ☊ 
Cậu nói nhỏ lắm. Tôi không nghe thấy cậu nói gì. ☊ 2577
You're speaking too quietly, I can hardly hear you. ☊ Cậu nói nhỏ quá, tôi gần như không nghe được cậu nói. ☊ She was quietly confident that everything would go as planned. ☊ confident ☊
We spoke quietly for fear of waking the guards. ☊ for fear of sth/of doing sth, for fear (that)... ☊
Don't mind me (= don't let me disturb you) —I'll just sit here quietly. ☊ mind ☊
to speak/move quietly ☊ quietly ☊
I spent a few hours quietly relaxing. ☊ quietly ☊
He is quietly confident that they can succeed (= he is confident, but he is not talking about it too much). ☊ quietly ☊
a quietly-spoken woman ☊ quietly ☊
so ... (that)...: She spoke so quietly (that) I could hardly hear her. ☊ so ☊
He sat there ever so quietly. ☊ so ☊
to raise/lower your voice (= to speak louder/more quietly) ☊ voice ☊
Keep your voice down (= speak quietly). ☊ voice ☊