on the stroke of seven/nine etcEXACTTIME/AT A PARTICULAR TIMEat exactly seven o’clock etc 七点整/九点整等 She arrived home on the stroke of midnight. 她午夜 12 点整才到家。
The only goal of the match came on the stroke of half time. 比赛中唯一一次进球是在上半场正好结束的时候。
on the stroke of seven/nine etc• Arthur would be gone on the stroke of nine, and Ann too, if it was possible.
→ on the stroke of seven/nine etc at stroke1(2)