重點講解:
1. 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 。
2. kill off 被全部殺死;被滅絕;
Their natural predators have been ki lled off.
它們的天敵被全部殺死 。
3. lead to 招致;致使;導致;
The new system may be more economic but will lead to a decline in programme quality.
新系統可能更合算,但是會降低程序質量 。
4. add to 添加;增加;
I have nothing to add to my earlier statement.
我對我早先說的話沒有什么補充的 。