n.接力比赛;中继设备;轮换者;
v.转播;转述;转送;
例句:
She wanted to relay the carpet in her new home.
她想重新铺设她新房子的地毯.
The use of the invention can be applied to the railway signal relay.
本发明的用途是:在铁路信号继电器中使用.
Britain's prospects of beating the United States in the relay looked poor.
英国要在接力赛中战胜美国,前景看上去并不那么乐观。