先

Today, we're gonna start with some songs about barnyard animals.

今天我们要先唱一些关于农场动物的歌曲

Gao Y Integrating GPS with barometry for high-precision real-time kinematic seismic survey Surveying and Land Information System , 1998,2

冯仲科%游先祥普通手持式GPS接收机用于林区近实时差分定位的研究林业科学， 2000，6

Left arm on the barre. Feet first.

比利，左手臂放在扶杆上，脚先来。

First of all, you have got to the barren land.

首先，你要先到荒芜之地。

Our first priority is to set up a base camp with proper defenses.

我们的头等大事就是先建立一座基地来防守。

It's just one of those things. They got a base hit to lead off the inning, and a tapper over 3rd.

第7局对方他们一上来就先打出一支安打，接著是一支三垒方向软弱小滚球上垒。

To know how much can be spent on benefits, you start with Base Pay.

要了解有多少钱可用于享受福利，须先看基本工资

For starters, perhaps sensing the need to set a new tone for his ballclub, Joe Torre showed some rare emotion during the game, getting ejected after an animated argument with third base umpire Jerry Crawford.

托瑞也许是为了让他的先发阵容感受到一股新的调性昨晚表现出少见的情绪对三垒审激烈的争论在五局被判出场

When the first purification alcohol extract first enrichment, then add water to dissolve acid, then the acid fluid, finally using organic solvent basification extraction, the organic solvent extraction layer to get concentration, total alkaloid.

纯化时首先把醇提取液先浓缩，然后加入酸水进行溶解，接着再把得到的酸水液碱化，最后用有机溶剂萃取，萃取得到的有机溶剂层再进行浓缩，就得到总生物碱。

To start, select any non zero vector in S, say (2,-3, 5), to a vector in the basis.

先由 (2，-3， 5)出发，逐一确认可以加进构成基底之向。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。