v. 不能；无法
1.Words cannot express my sorrow.
语言不能表达我的悲伤。
2.I just cannot comprehend your attitude.
我就是不能理解你的态度。
3.Humans cannot digest plants such as grass.
人不能消化草类植物。
4."We cannot lose the war!" he shouted exultantly.
“我们不会输掉这场战争！”他自豪地喊道。
5.We cannot afford any more delays.
我们不能再有任何耽搁了。
6.Employers cannot discriminate on grounds of age.
雇主不得有年龄歧视。