as sober as a judge
Nghĩa
Định nghĩa · Completely clear-headed and not affected by alcohol.
“Don't worry, the driver is as sober as a judge.”Đừng lo, tài xế hoàn toàn tỉnh táo.
Ghi chú · sober = tỉnh táo (không say rượu). Trái nghĩa: as drunk as a lord.