查询词典 at first

The first time you sell a gun：第一次卖枪的感觉

my first Israeli-made Uzi submachine guns.|以色列制的乌兹冲锋枪 | The first time you sell a gun...|第一次卖枪的感觉 | is a lot like the first time you have sex.|很大程度上就象第一次^做**一样

first time derivative：一阶时间导数

first term 首项 | first time derivative 一阶时间导数 | first treatment 预处理

The swift-footed arrive first：捷足先登

243. First come first served. 先到先得. | 243. The swift-footed arrive first 捷足先登 | 244. Great minds think alike./ see eye to eye/ 共识 英雄所见略同

First rate Universities：一流大学

面突:the first branchial arch | 一流大学:First rate Universities | 预防为主:Prevention first

first class; coach：頭等客車

3990 first class car 頭等客車 | 3991 first class coach 頭等客車 | 3992 first class seating compartment 頭等座席包房

first day：星期日

first cost 原始成本 | first day 星期日 | first finger 食指

first in last out：先今后出

first-in last-out 先进后出 FILO | First-In,Last-Out 先今后出 | first-order loop 一阶环路

first water：一出水

first unlocked door 太平门 | first water 一出水 | first work period 第一工作日

first water：一次蒸馏水

first wash 一段洗涤 | first water 一次蒸馏水 | first wet felt 第一湿毛毯

the first string：第一个方案

the first quarter 一季度 | the first string 第一个方案 | the first thing 立即

Dog Waylayer：伏擊犬

Dog Soldier 犬兵 | Dog Waylayer 伏擊犬 | Dogbite Ridge 狗咬山脈

earthwax：木炭

earthmetals 土金属 | earthwax 木炭 | earthyhumus 土状腐殖质