評論
打印
Language Point 36
As it swung back and forth, ...(Para. 14)
Meaning: While it moved back and forward...
back and forth: move back and go ahead or forward
A pendulum swings back and forth.
鐘擺前后擺動。
He walked back and forth in his room waiting for the news from his son.
他在房間里走來走去，等候他兒子的消息。
