19. When the letter carrier delivers your order, check the box before signing for it.
当那个邮递员将你订购的货物送到时,签收之前检查那个包装盒。
《柯林斯英汉双解大词典》
20. Yesterday she found this leaflet in her letter-box.
昨天她在信箱里发现了一张宣传单。
youdao
21. There's an "objective and demands" box that a middle-aged man stuffs a letter into.
一个中年男子向标有还“目的和需求”字样的箱中塞了一封信。
youdao
22. One morning, on his return from the law-school, Marius found a letter from his aunt, and the sixty pistoles, that is to say, six hundred francs in gold, in a sealed box.