cheap (adj.)
便宜
 
例句：
It is too cheap to be good.
这东西太便宜，好不了。（便宜没好货。）

Fresh vegetables are very cheap in the autumn.
新鲜蔬菜在秋天很便宜。
 

give me a hand
请帮个忙

例句：
Please give me a hand. I can't carry it myself.
请帮我个忙，我自己拿不动了。

There's a call for you.
有你的电话。

也可以说成：
You are wanted on the phone.
Telephone for you.
Tony, telephone!（非常口语化的说法）