Knapsacks
n. （士兵或旅行者的）背包( knapsack的复数形式 )
🗣️ 情景例句
The bank canceled his loan and took back his car.
银行取消了他的贷款并收回了他的车。
The sanitary engineer collects garbage.
卫生队员收集垃圾。
later, we shall undergo a progressive loss of our vigour and resistance which, though imperceptible at first,
再迟一些，我们就要经历生命力和抵抗力逐步衰退的过程。虽然这个过程起初难以觉察，