seafood
sea + food → seafood (海鲜)
seafood为不可数名词。“吃海鲜”用have/eat seafood表达。
I like seafood. It tastes good. 我喜欢海鲜，它的味道不错。
“在岛上”用on the island表达， “一座岛”用an island表达。
Vera likes playing with her family on the island.
in the south of的意思是“在……的南部”。
Hainan Island is in the south of China. 海南岛在中国的南部。
in the north/east/west of … 在……的北部/东部/西部
Nice to meet you. 很高兴认识你。
Will you meet me at the station? 你会在车站接我吗？
“校门”用school gate表达；“公园门口”用park gate表达。
There is a poster at the school gate.校门口有张海报。
meeting (会议) + room (房间) → meeting room (会议室)
“在会议室”用in the meeting room表达。
There are no teachers in the meeting room. 会议室里没有老师。
②“一条裤子”用a pair of trousers表达。
I want a pair of trousers.
—A pair of shoes, please. 请给我一双鞋。
Keep quiet. Mum is sleeping. 保持安静。妈妈正在睡觉。
Keep off the grass! 勿踏草坪！
laugh的意思是“大笑”，laugh at sb表示“嘲笑某人”。
Don’t laugh at that girl. 不要嘲笑那个女孩。
wrong的意思是“有毛病；不正常；错误的”，常出现在句子
What’s wrong with you? 中，意思是“你哪里不舒服？”
in the wrong box 处于窘境，不得其所
medicine的意思是“药”，通常只指口服的药，为不可数名词。take some medicine表示“吃一些药”。
Paul has a cough. He should take some medicine. Paul咳嗽。他应该吃一些药。
tooth ( 牙齿 ) + ache ( 疼 ) → toothache ( 牙疼 )
① ache一般指持续性的疼痛，常与表示身体部位的名词组成合成词，如earache、headache等。
② have a toothache表示“牙疼” 。
—I have a toothache. What should I do?
—You should go to see the dentist.