once whack
一次正常
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Where once workers had to bend awkwardly to hold and whack headliners into place on the car's ceiling, a headliner now has sewn-in magnets that keep it in place on the roof's metal frame.
FORBES: Man Vs. Machine
应用推荐
模块上移
模块下移
不移动