名詞 relay:

1. the act of passing something along from one person or group to another
2. a crew of workers who relieve another crew
3. a fresh team to relieve weary draft animals
4. electrical device such that current flowing through it in one circuit can switch on and off a current in a second circuit
   同義詞：electrical relay

動詞 relay:

1. pass along
2. control or operate by relay

1. The anchor man in a relay team runs last.
   接力隊中的主力跑最後一棒。
2. The moving part of an electromagnetic device such as a relay, buzzer, or loudspeaker.
   電樞電磁裝置的移動部分，如繼電器，蜂音器或揚聲器
3. Scientists have set up two kinds of relay stations. One kind is on the earth, the other is a satellite placed in space around the earth.
   科學家們已建立了兩種中繼站，一種在地球上，而另一種是放在地球周圍太空中的衛(wèi)星上。

re.lay

n.（名詞）
An act of passing something along from one person, group, or station to another.
傳遞：從一個人到另一個人、一組到另外一組或一站到另一站一路傳下去的動作
Sports
【體育運動】
A relay race.
接力賽跑
A division of a relay race.
接力賽跑的分程
Electronics A device that responds to a small current or voltage change by activating switches or other devices in an electric circuit.
【電子學】 繼電器：對細小的電流或者電壓起反應，在電路中起動開關或其他裝置的裝置
A crew of workers who relieve another crew; a shift.
替班，代班：接替另外一組的一組工人；更替
A fresh team, as of horses or dogs, to relieve weary animals in a hunt, task, or journey.
備用馬，替班犬：在打獵、任務或旅行的過程中接替疲憊的動物的精力充沛的一組，如馬或狗
v.tr.（及物動詞）
re.layed,re.lay.ing,re.lays[rô.l3, r-l3.]
To pass along by or as if by relay:
分程傳送：象接力那樣地傳遞下去：
例句：
relayed the message to his boss.
把消息分程傳遞給他的老板

To supply with fresh relays.
給…換班，準備接替：以精力充沛的一組接替
Electronics To control or retransmit by means of a relay.
【電子學】 控制，傳送：用繼電器控制或再傳送

來源：
Middle English relai [fresh team of dogs for a hunt]
中古英語 relai [精力充沛的一隊獵狗]
from Old French
源自 古法語
from relaier [to relay]
源自 relaier [傳遞]
re- [re-]
re- [前綴，表示.又，在.等意思]
laier [to leave] [of Germanic origin] * see leip-
laier [離開] [起源于日耳曼語] *參見 leip-