in first是啥意思

in first是啥意思 first是啥意思 First come first served.中的“SEVED”是啥意思? in the first half of the decade是何意思? First-in-Class什么意思 fall in love at the first sight 啥意思? 英语翻译He was first in the queue.意思是他排在队的前面.He was the first in first啥意思 First Blood 啥意思 是on the first week还是in the first week first in first out的first与in分别是形容词与介词? first在这里什么词性,意思是?