【词汇讲解】

1. heritage n. 遗产，继承物

The ancient buildings are part of the national heritage.
这些古建筑是民族遗产的一部分。

2. digital adj.数字式的，数码的

There's a digital watch on the table.
桌子上有一块数字式手表。

3. sibling n. 兄弟，姐妹

A street that I was never allowed to cross unless accompanied by an adult, or at the very least, an older sibling.
除非有大人或至少一个哥哥或姐姐陪着，我从未被允许穿过那条街。

4. antidepressant n. 抗抑郁剂

In some circles it's customary to compare antidepressant dosages before moving on to other topics.
在某些圈子里，谈其他话题之前先比较一下抗抑郁药用量已成了常规。