knife的复数
knife的复数是knives
以f或fe 结尾的名词变复数时:
a. 加s,如: belief---beliefs roof---roofs
来自:wuliaokankan.com
safe---safes gulf---gulfs;
b. 去f,fe 加ves,如:half---halves
knife---knives leaf---leaves wolf---wolves
wife---wives life---lives thief---thieves
以f或fe 结尾的名词变复数时:
a. 加s,如: belief---beliefs roof---roofs
来自:wuliaokankan.com
safe---safes gulf---gulfs;
b. 去f,fe 加ves,如:half---halves
knife---knives leaf---leaves wolf---wolves
wife---wives life---lives thief---thieves
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