重点讲解:
1. show up 出现;露面;
例句:Periodicity of nuclear properties began to show up.
原子核性质的周期性开始显示出来了 。
2. turn into (使)变成;(使)成为;
例句:Oil can be turned into energy by burning it.
油经过燃烧可变为能源 。
3. compared to 与…相比;和…比起来;
例句:The old can really does look dated compared to the new look.
相比新的外观,原外观真的显得很陈旧 。
4. come up with 想出,提出(计划、想法等);
例句:You're the only one to come up with that answer.
你是唯一一个给我这样的答案的人 。
5. zero in on 全神贯注于(问题或主题);
例句:They zeroed in on the suspicious man.
他们的注意力集中在那个可疑分子身上 。
adj. 免除的,免疫的