1.support a family养家糊口
I can't afford losing my job, for I have a family to support.
我不能丢了这份工作,我还有一大家子人要养活呢。
2.try one's best 尽某人最大能力
I will try my best to fullfil the set task.
我会尽全力完成任务的。
3.call sb./make a call打电话给某人
Wait a minute, I have to make a call.