Knapsacks
n. （士兵或旅行者的）背包( knapsack的复数形式 )
🗣️ 情景例句
I have to return this book to the library.
我得把书还回图书馆了。
Many wells, many buckets.
井多吊桶也多。
he stooped to talk to a workman.After they had gone on,
途中，停下来与一个工人交谈，接着他们继续往前走去。