记忆方法
双解例句
小知识
A restriction is a limitation or a restraint, like when a size restriction keeps you from jumping on a toddler trampoline and bouncing the smaller kids a mile up in the air.
Usually a restriction is in place because a limit needs to be set. Common sense would keep you from putting a bowling ball in a paper bag; you wouldn’t need a restriction to tell you not to do it. Sometimes a restriction is the result of doing something bad or misusing a privilege, as when your parents put a restriction on video gaming to limit your time in front of the TV.
实用短语
常用短语
单词用法
restriction fragment限制酶断片
restriction endonuclease限制酶,限制性内切核酸酶
trade restriction贸易限制
词根词缀
词根: strict
=tighten,表示”拉紧”
adj.
strict [with]严格的,严厉的;严谨的,精确的strict拉紧→adj.[with]严格的,严厉的;严谨的,精确的
n.
constriction 压缩,收缩constrict[v.压缩]+ion表名词→n.压缩,收缩
district 区域, 地方, 管区, 行政区dis分开+strict拉紧→分开拉,分开管理→分区;区域, 地方
restriction 限制,限定,约束restrict[v.限制,约束]+ion表名词→n.限制,限定,约束
stricture 谴责,严厉,束缚strict[adj.[with]严格的,严厉的;严谨的,精确的]+ure表名词→n.谴责,严厉,束缚
v.
restrict 限制,约束re回+strict拉紧→拉回来,限制
constrict 压缩con一起+strict拉紧→v.压缩
同义词
obstruction / prohibition / provision / contraction / ceiling / limit / prevention / qualification
同根词
词根:restrict
adj.restricted受限制的;保密的
restrictive限制的;限制性的;约束的
adv.restrictively限制性地
n.restrictive限制词
v.restricted限制(restrict的过去式和过去分词)
vt.restrict限制;约束;限定