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打印1.donation n. 捐赠物, 捐款, 捐赠
例句：
The association received the money as a donation.
协会将那笔钱作为捐款收下了。
2.mortgage n. 抵押, 约束性义务, 抵押借款
例句：
repay one's mortgage in monthly instalment
每月分期付款偿还抵押借款
3.shack n. 棚房(窝棚)
例句：
The boy makes a shack out of the old board in the backyard.
男孩们在後院用旧木板盖起一间小木屋。
4.assignment n. 分配,功课,任务,被指定的(课外)作业;(分派的)任务,委派
例句：
He is the best man who can finish the assignment.
他是能完成这项任务的最佳人选。
5.Humanity n. 人类；人性;人道;慈爱
例句：
Such a man is a stain to humanity.
这种人是人类的耻辱。
