重點講解:
1. part of 一些;部分;
Part of my bedroom ceiling has fallen in.
我臥室的天花板有些地方塌下來了 。
2. need to do sth. (為做成某事或正常生活)要求有,必須有,需要;
He needs to win this game to stay in the match.
他得贏下這場比賽以免被淘汰出局 。
3. at least 至少;不少于;
It'll cost at least 500 dollars.
這東西至少要花500元 。
4. date back to 追溯(到);開始(于);始造(或建)(于);
The community's links with Syria date back to biblical times.
這個團體與敘利亞的關系可以追溯到《圣經》時代 。
n. 疫苗