rub

He had to rub his hands together to stay warm in the freezing weather.

(Chinese) 在寒冷的天气里，他不得不来回搓手来取暖。

Rub the surface of the old wood with sandpaper to make it smooth before painting.

(Chinese) 在油漆之前，用砂纸摩擦旧木头表面使其光滑。

After a long day of hiking, a back rub really helped my sore muscles relax.

(Chinese) 徒步旅行一整天后，揉揉背确实帮我酸痛的肌肉放松了。

The stain on the shirt should come out if you give it a good rub with soap.

(Chinese) 如果你用肥皂用力搓一搓，衬衫上的污渍应该能洗掉。