「顺手」和「随手」

中文最轻的动作词。不费劲，捎带。

顺手关门。         Close the door on your way.
随手扔。           Toss it wherever.
顺手牵羊。         Shoplifting. / Picking up on the sly.

顺手 = 做主要事的路上带一下 随手 = 不讲究地方就做

两张脸

中文	英文
顺手（路上顺便）	on the way / while you're at it
随手（随便地）	just / casually / without thinking

动手

顺手把灯关了。

✅ Turn off the light on your way out.

随手拿一个吧。

✅ Just grab one.

顺手把垃圾倒了。

✅ Take the trash out while you're at it.

不要随手扔垃圾。

✅ Don't just throw your trash anywhere. / Don't litter.

小卡片

顺手（捎带手）   →  on your way / while you're at it
随手（随便）     →  just / casually

——下一课：「难怪」。