1.take after为什么与be similar to的意思相似?
2.give away为什么与give sb. sth. without money的意思相似?
3.concern为什么与interesting things的意思相似?
參考答案:take after [简明英汉词典]
v.象, 学样
be similar to [简明英汉词典]
与...相似
give away [简明英汉词典]
v.送掉, 分发, 放弃, 泄露, 出卖, 让步, 陷下
What you need is to care about the usage of them, then you can really master them.