1.of+三或更大数字+复数名词,S+V+最高级修饰语 在……之中，最……
例句：Of the three students，Sean scored the highest on the English test.
在三个学生中，肖恩的英文考了最高分。

2.long for... 渴望
例句：Dan is longing for a trip to South Africa.
丹渴望一趟南非之旅。

3.summer vacation 暑假
例句：During my summer vacation, I would like to liven up my garden with lavender.
我想在暑假时用熏衣草来装饰我的花园，使它变得有生气。

4.outdoor activity 户外活动
例句：Hence regular participation in an outdoor activity like running, trekking, hiking, sports, etc., could keep you fit physically as well as mentally.
多参加一些户外活动，比如说跑步，徒步旅行，登山等等，会让你在体力和精神上都更加健康。