the coast is clear片語KK [ðə kost ɪz klɪr] /ðə koʊst ɪz klɪɹ/發音片語1沒人看見、四下無人、安全口語Wait in the car until I tell you the coast is clear.在車裡等著,我說沒人看見你再出來。2障礙已除、再無阻礙Once the boss leaves, the coast is clear and we can go home early.老闆一走就沒什麼顧慮了,我們可以提早回家。