Vol.409 check in除了住酒店外，其实还有其他更多的用法！

Check in 酒店入住 Hi. I have a reservation for tonight, and I just want to check in. 嗨，我预定了今晚的房间，我想办理下入住手续。 Check in 办理乘机手续 Passengers are requested to check in two hours before the flight. 乘客应在飞机起飞前两小时办理登机手续。 Check in 打电话报平安 I have to check in with my dad when I am traveling abroad. 我出国旅行时得和我爸打电话报平安。 Check sth. in 托运行李 Will you check in any luggage, madam? 女士，您有行李要托运吗？ Check-in desk 登机手续办理处 Let&`&s meet at the check-in desk when you finish. 你办完后我们在登机手续办理处见。 今日挑战 翻译句子 I check on our elderly neighbor every few days to make sure that he&`&s alright. 【翻阅上一期内容即可查阅正确答案】 【下一期内容的正确答案解析】 Most medical experts believe that breastfeeding is better than bottle-feeding. 大多数医疗专家认为，母乳喂养比喂奶粉好。