They have a large family to feed.
他们要养活一大家人。
Power is fed into the electricity line through an underground cable.
电力通过地下电缆传输给这条电线。
The electricity line is fed with power through an underground cable.
这条电线的电源是通过地下电缆传输的。
What the audience tells me feeds back into my work.
观众给我提的意见反过来对我的作品起到了促进作用。