重點講解:
1. used to do sth. 過去常常;過去曾;
People used to come and visit him every day.
人們過去每天都來拜訪他 。
2. bump into 偶然遇見;意外碰到;
I happened to bu mp into Mervyn Johns in the hallway.
我在走廊里意外碰見了默文·約翰斯 。
3. in the middle of (某件事或某段時間的)中期;
I woke up in the middle of the night and could hear a tapping on the window.
我半夜里醒來,聽見有敲窗戶的聲音 。
4. turn out 原來是;結果發現;
Cosgrave's forecast turned out to be quite wrong.
科斯格雷夫的預測最后證明是大錯特錯 。
n. 保存,防止流失,守恒,保護自然資源