我们要介绍的最后一个前缀with-又是英语本族语前缀，其原意是against；此外又引出away，back等意思。至于with-相当于介词with的用法，则是现代英语中才有的。以with-开头的派生词为数不多。这里只介绍最常用的几个。

withstand [ with- = against 相对；stand v. 站立→]v. stand against; resist; endure 抵挡，顶住；反抗；忍受 / Explorers have to withstand hardships. 探险家要顶得住艰难险阻。

withdraw [ with- = away or back 回，离；draw v. 拉→]v. draw back; draw away 收回；撤回；撤退；撤销 / He agreed to withdraw the charge of theft if you return the money. 如果你将钱归还，他同意撤回对你的盗窃的起诉。

withdrawal n. 收回；撤回；撤退；撤销

withhold [ with- = back 回；hold v. 保持→]v. ① hold back；keep back 抑制；阻止 / The dam broke as it was too weak to withhold the pressure of the rising water. 堤坝决口了，因为它不够坚固，顶不住河水上涨的压力。②refuse to give不给，扣留/ There will be no whale hunting because the government withholds permits. 不可能去捕鲸了，因为政府拒绝发给许可证。 

withholder n. 抑制者；抑制因素

within [ with- = with 与；in= inside 内部→“along with the inside 与内部相连prep.① in the inner part of; inside of 在…里面；在…内部 / By the use of X rays, doctors can see within the body. 利用X光射线，医生能看到人体内部。②inside the limits of; not beyond 在…范围内；不超过/The task is within your power. 这任务是你力所能及的。

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