Leapfrogged
v. 跳背, 交替前进, 跃过( leapfrog的过去式和过去分词 )
🗣️ 情景例句
and we must prepare this room.
我们得收拾好房间。
What are you interested in?
你对什么比较感兴趣？
But a watch could never repair itself----it does not consist of living parts,
但是，手表决不会自行修理，它不是由有生命的部件组成，