I heard someone calling for help.

我听见有人在呼叫帮忙。

youdao

A little girl was calling for help in the river nearby.

一个小女孩正在附近的河里喊救命。

youdao

John saw at least ten people getting out of the bus and heard them calling for help.

约翰看到至少十几个人从巴士里出来，并听见他们呼喊着求救。

youdao

You should act by calling for help, or sending someone else.

VOA: special.2009.08.11

U.S.Defense Secretary Robert Gates is attending this meeting with a similar message, calling for a broad range of additional European help in Afghanistan, even though President Barack Obama has not yet decided whether to send more U.S.troops.

VOA: standard.2009.10.23

He lay helpless, calling for help, for 50 minutes, bleeding to death before the shooters bestirred themselves.

FORBES: A Development In Berlin Threatens The Wall That Once Divided A Continent

He's either noticed that I'm calling for help or has decided that he's scared me enough for one day.

ENGADGET: This is the Modem World: When tech can't save us from road rage

Koda was seen kneeling in front of three masked militants dressed in black and calling for help from Koizumi.

CNN: Japan: Hostage killed in Iraq