跑腿的英文：
do a message
errand
fetch and carry
go on a message
go on an errand
on an errand
run a errand

参考例句：

Fag:a student at a British public school who is required to perform menial tasks for a student in a higher class.
受高年级使唤的低年级学生:在英国公立学校为高年级同学做跑腿活儿的学生。

I'll use him as a runner.
我会让他做跑腿的。

Work that involves moving around on foot;legwork.
要跑腿的工作需要步行来回跑的工作;要跑腿的工作

They sent their son out to run errands.
他们派儿子出去替他们跑腿。

He was grooved in running errands for his neighbors.
他已习惯于为邻居跑腿。

The women of the village, too, used to employ him to run their errand.
村里的女人也常常差遣他为她们跑腿。

"Now that I am out on errand, they will never know whether I am working or not. "
由于我在外面跑腿,他们永远也不知道我是否在工作?

【英】When he first entered the school, he had to fag for the senior students.
【英】他刚入学时，不得不为高年级学生跑腿干活。

"Little Fang is the real noble one.He sat in the hotel without stirring, while we did all the running around for him.
小方是真正的贵人，坐在诱馆里动也不动，我们替他跑腿。

message是什么意思：
n. 信息；消息；启示；主旨；寓意；电报；传真
v. 通知

These messages interrupt pain messages that are on their way to the brain.
这些信息阻断了向大脑传递疼痛信息的去路。

A message was flashed on his pager.
他的寻呼机上闪现着一个信息。

Send a message by radio
用无线电发送讯息；发报

errand是什么意思：
n. 差使；差事；使命

Your errand was to mail the letter.
你的差事是去寄这封信。

He bustled the maid off on an errand.
他催女佣赶快去办差事。

For a moment he forgot his errand.
有一小会儿，他忘掉了自己的使命。

fetch是什么意思：
v. 拿来；请来；售得；使发出；吸引
n. 拿，取；取物的距离；风浪区；诡计

fetch a circuit
迂回|绕道而行

You first have to play 'fetch' with 20 objects.
首先你必须用20个物体来玩‘取物’游戏。

We have much leeway to fetch up.
我们有很大的差距要赶上。