夜以继日，日夜，昼夜，日以继夜...

round the clock的音标：round the clock的英式发音音标为：[raund ðə klɔk]round the clock的美式发音音标为：[raʊnd ði klɑk]...

Rescue services have been working round the clock to free stranded motorists.救援部门一直在日夜不停地工作，解救被困司机。Police mounted round-the-clock guards on properties last night.警方昨晚通宵值守财物。His parents kept a round-the-clock vigil at his...