1.
The server continues to alternate his serve until he loses a rally.
直到交换发球权之前可连续发球，交换发球在左发球(进行)。
2.
alternate in serving
①换发球②双打中一方轮流发球
3.
Then his opponent has the right to serve.
直到交换发球权之前可连续发球，交换发球权后对方首先在右发球区发球。
4.
Each player serves for five points.The players alternate service until the end of the game.
每人发球5次,双方轮换发球,直至比赛结束。
5.
Once introduced, the expedite system shall remain in operation until the end of the match.
轮换发球法一经实行,将一直使用到该场比赛结束。
6.
A lobbing service! Point! The right substitution at the right time．
发了一个高球!得分!换人换得正是时候。
7.
We substituted a red ball for blue to see if the baby would notice.
我们用红皮球换下了蓝皮球，看这婴儿会不会发觉。
8.
X to serve,Y to receive.
X发球,Y接发球。
9.
Construction of Recombinant Plasmid Through Substituting the Alcohol Dehydrogenase Ⅱ Gene of Zymomonas Mobilis for the Lactate Dehydrogenase Gene of Streptococcus Mutans;
运动发酵单胞菌adhB基因置换变形链球菌Idh基因重组质粒的构建
10.
On The Capital Transformation of Intangible Culture Heritage--based on the development of silk ball industry in JiuZhou town;
从旧州绣球产业的发展看非物质文化遗产的资本转换
11.
Preparation and Size-dependent Upconversion Luminescence Mechanism of Y_2O_2S∶Yb,Ho Nanoparticles
球形Y_2O_2S∶Yb,Ho上转换粒子的合成及其尺寸相关的发光机制研究
12.
We carry out a transformation to spherical polar coordinates.
我们变换成球极坐标。
13.
(in tennis,etc)act or manner of serving the ball;person's turn to serve
（网球等的）发球,发球方式,轮到的发球权
14.
You can exchange a club from your caddie.
你可以从你的球童那儿换一根球棒。
15.
roundhouse serve
大力钩手发球，抡臂发球
16.
service Break
发球员输掉发球的一局
17.
Second server!
第二发球员发球!(双打)
18.
First server!
第一发球员发球!(双打)