https://online2.tingclass.net/lesson/shi0529/0009/9907/425.mp3
https://image.tingclass.net/statics/js/2012
講解文本：
buckle up 系好安全帶，把…扣緊
Hey man! Buckle up. It's safe. It's the law!
哥們，系上安全帶!這樣才安全啊，而且這是法律規(guī)定。
Please buckle up now. We're about to land.
現(xiàn)在請(qǐng)系好安全帶，我們要著陸了。
瘋狂練習(xí)吧!
