backside

名词

1. 1

   屁股、臀部口语

   He slipped on the ice and landed right on his backside.

   他在冰上滑倒，直接一屁股坐在地上。

2. 2

   背面、后侧

   The serial number is printed on the backside of the device.

   序号印在这台装置的背面。