1. Anh cũng lấm lét như có tội nữa.

Now that you know, you're acting guilty too.

2. Với nét mặt hết sức mặc cảm tội lỗi, nó lấm lét nhìn cha.

With the guiltiest expression on his face, our son looked at his father and scrunched down in his seat.