重點講解:
1. exert on 施加(影響、壓力等);行使,運用(權威等);
The moon exerts a force on the earth that causes the tides.
月球對地球的吸引力引起潮汐 。
2. topple over (使)搖搖欲墜;(使)不穩而倒下;
The tree is so badly damaged they are worried it might topple over.
這棵樹嚴重受損,他們擔心它會倒掉 。
3. stare at 盯著看;凝視;注視;
I would rather stare at a clear, star-filled sky than a TV set.
我寧可凝視繁星滿天的晴朗夜空也不愿盯著電視機 。
4. fess up 供認;坦白;
He fessed up to the fact that he was too old.
他承認這一事實:他年齡太大了 。
adj. 看不見的,無形的
n. 隱形人(或物