请用英文进行下列词汇的名词解释1.queue2.BCD

1.queue
(noun)
a line of people, cars, etc. waiting for sth or to do sth
(verb)
～(up)(for sth)to wait in a line of people,vehicles,etc.in order to do sth, get sth or go somewhere
2.BCD
(noun)
bulk charge-transfer device
(noun)
binary coded data
(noun)
bipolar CMOS DMOS

1.queue:a line of people or vehicles waiting for something
2.BCD:binary coded decimal-to-decimal converter