了解...的中心意思 learn the main idea of ...
再学校入口处 at the entrance to school
可以来做各种实验 can be used for kinds of experiments
参考 refer to
从...毕业 graduate from ...
在这种情况下 under the circumstances
把...同...作比较 campare .. with ...
向某人作自我介绍 make a self-introduction to sb.
用其他东西与某物搭配 use other things to match ...
根据 in according to, in accordance with
约会晚点 appointment delay
把某物捐献给某人 donate sb. sth. / donate sth. to sb.
删除 delete / cross out
有了做完某事的兴趣 have an interest in doing sth.
一完成学业（就...） once having finished one's study
把某事通知某人 notify sb. of sth.