went under的用法和樣例：
例句
- He sucked in air, then went under the water again.
他深深吸了一口氣又潛到水裡。 - The greater part of the rabbit population of Britain went under to the disease of myxomatosis.
繁殖在不列顛的兔子，曾經由於粘液瘤病而死去一大半。 - All of us cried when our house went under the hammer.
我家的房子被賣掉了，我們全哭了。 - Before liberation, a lot of factories went under to foreign competition.
解放前，許多工廠經受不起外國的競爭而倒閉。
