重点讲解：
1. even though
即使；尽管；纵然；
eg. I will have a try even though I should fail.
哪怕失败，我也要试一下。
eg. Even though he tried, he still lagged behind other runners.
尽管他努力了，仍落在其他赛跑者之后。
2. again and again
再三；反复；
eg. The same changes took place again and again.
同样的变化一再发生。
eg. He would go over his work again and again until he felt he had it right.
他会反复检查自己的工作直到他认为正确为止。
3. come up against
碰到；面对；
eg. We came up against a great deal of resistance in dealing with the case.
办这个案子的过程中，我们遇到了很多阻力。
eg. I must say, this is a situation I haven't come up against before.
应该说这种情况我以前可没碰到过。
4. cut corners
图省事；走捷径；
eg. Take your time, don't cut corners and follow instructions to the letter.
慢慢来，不要图省事，要严格按照说明去做。
eg. She cut corners going to work in a hurry.
她匆忙抄近路去上班。
5. be supposed to do sth.
（按计划或期望）应当，应该，须；
eg. Don't be too curious about things you are not supposed to know.
对于你不应该知道的事情别去好奇地打听。
eg. The tests are supposed to provide a basis for the assessment of children.
这些测试应该可以为评价儿童提供一个基础。