shield,guard,defend有什么区别?

shield,guard,defend有什么区别? prevent,protect,guard,defend好像都是防御的意思,有什么不同么? 请问 protect defend guard preserve的区别 [英语]词义分辨guard 和 defend 和 protect 的区别 pretect/defend/guard/preserve四者区别?Thank YOU protect against与 guard against 有区别吗 防止骄傲是该用哪一个?whatever we have achieved,we should always __________ against pride.A protect B guard C defend D prevent 有没有on guard defend ...against 和defend...from有什么区别吗? 急..守护英文怎么写..要具体..我不想说出去是错误的..很丢人..我搜到的怎么有这么多..to guard; to defend; to ward; to watch 哪个才是正确的 Hold my hand,let me feel your warm,cuz I believe,that is the shield to defend all the pain... 关于protect和defend.protect和defend有什么区别?protect from 和defend from 呢? guard defend,guard,preserve,keep的区别例子：It is not easy to places of historic interest.It takes a great deal of money and advanced technique.A.defend B.guard C.keep D.preserve protect和defend有什么不同 doorkeeper和guard有什么区别? guard和guarantee有什么区别? 请帮我辨析一下这四个英语单词``如题`defend,guard ,protect,conserve我知道它们都表示保护,守卫的意思,想知道它们的区别` 15.Dogs are kept to ...15.Dogs are kept to __________ the houses from thieves at night.A.guard B.defend C.protect D .preventdog 保卫家能否用guard