by a single action having immediate effect
一下子，一舉
attitudes cannot be changed at one stroke.
態(tài)度不可能一下子改變。
do no work at all
什么也不干，根本不工作
precisely at the specified time
準時地，準點地
he arrived on the stroke of two.
他兩點準時到達。
disconcert someone so that they do not work or perform as well as they might; break the pattern or rhythm of someone's work
打亂…的工作進度；打擾
a profitable transaction
有利可圖的交易，賺錢的交易
an outstandingly brilliant and original idea
非凡的創(chuàng)見
a fortunate occurrence that could not have been predicted or expected
突交好運，突然走運