on the dot片语KK [ɑn ðə dɑt] /ɑn ðə dɑt/发音片语1准时、不差分秒The meeting started at nine on the dot.会议九点准时开始。2正好、恰好The final bill came to fifty dollars on the dot.最后的帐单正好是五十美元。用这个字练口说→