insists（insists的短语）
insists，insists的短语？
短语insist on
tough和tougher的区别？
tough，adj.艰苦的;艰难的;棘手的;严厉的;强硬的;无情的;坚强的;健壮的;能吃苦耐劳的;
例句
It was a tough race and I had to pace myself.
这是场艰苦的比赛，我不得不控制好节奏。
tougher更严厉的，tough的比较级;
例句
The government insists that 'prison works' and plans to introduce a tougher sentencing policy for people convicted of violent crime.
persisted和insists的区别？
Persist 意思是carry on, carry through
反义词: abandon, cease, give up, leave, quit, stop
Insist 意思是 order and expect; claim
反义词: endure, forget, tolerate
persist: to continue to do sth, although it's hard or other people oppose it 虽然某事很难，但坚持做某事
insist: to say firmly and often that sth is true, especially whe people thinks it is not. 虽然别人不同意，但坚持认为某事是对的。
western什么时候是专有名词？
当western修饰名词时，就是专有名词。例如:
Western civilization是专有名词，指"西方文明社会"They have clearly embraced Westernconsumerism.
很明显他们已经接受了西方的消费主义观念。
The single-engine plane landed in westernArizona.
单引擎飞机在亚利桑那州西部降落。
Western fears, he insists, are greatly exaggerated.
他坚持认为西方的担忧被高度夸大了。
enhance中文意思？
enhance[英][ɪnˈhɑ:ns][美][ɪnˈhæns]vt.加强;提高，增加;第三人称单数：enhances现在分词：enhancing过去式：enhanced过去分词：enhanced双语例句1They'llbekeentoenhancetheirreputationabroad.他们会非常渴望提高他们在国外的声誉。
2Thefatheroftwoyoungchildren,pageinsiststhathispetproject,whenready,willactuallyenhancesafety.佩奇是两个幼子的父亲，他坚持认为他看重的这个项目一旦准备就绪，就能切实地提高安全性。
