"backsides" in Chinese (Simplified)
屁股臀部
Definition
“Backsides”是指一个人的身体后部，尤其是臀部。也可以更广泛地指某物的后面部分。
Usage Notes (Chinese (Simplified))
‘Backsides’是非正式表达，常带玩笑语气，用于指臀部，几乎总指人体，极少指物体背面。正式场合请用更中性的词。
Examples
The kids landed on their backsides after sliding down the hill.
孩子们滑下山后坐在了自己的**屁股**上。
Please sit on your backsides and wait quietly.
请坐在你的**屁股**上，安静等候。
He fell hard on their backsides during the game.
他在比赛中重重地摔在了**屁股**上。
After sitting so long, my backsides are getting sore.
坐了这么久，我的**屁股**都要疼了。
We laughed when the puppies slipped and landed on their backsides.
看到小狗滑倒坐在**屁股**上，我们都笑了。
You can't just sit on your backsides and expect things to happen.
你不能只坐在**屁股**上什么都不做，还指望事情自己发生。