[countable, uncountable] the place where you go to at an airport to leave your bags, cases, etc. and show your ticket （机场的）登机手续办理处 The airline apologizes for long delays at check-ins today. 航空公司为今天办理登机手续耽误了很多时间而道歉。 Aim to arrive at check-in at least two hours before departure. 旨在至少在出发前两个小时到达办理登机手续。 Topics Transport by air b1 [uncountable] the act of confirming your intention to take a particular flight and your personal details either at an airport or using a computer （在机场或电脑上）办理登机手续，办理值机 Do you know your check-in time? 你知道办理登机手续的时间吗？ 🔊 🔊 (British English) the check-in desk 办理登机手续的服务台 (North American English) the check-in counter 办理登机手续的服务台 Topics Transport by air b1 [countable, uncountable] the time when you arrive at a hotel at the start of your stay （机场的）登机手续办理处 We can arrange an early check-in. 我们可以安排提早入住。 opposite checkout ( 2) Topics Holidays b1