先发球员的英文：
starter（指个人）
starting lineup（指全体）

starter是什么意思：
n. 发令员；启动装置；参赛人；第一道菜

assistant starter
助理发令员

Starter standing in front of runners.
发令员站在选手们前面。

Clamp the starter in a vise.
用老虎钳固定起动机。

starting是什么意思：
n. 开始，起点；动身；开动；震惊，震动
v. 出发；开始，着手；发动；创办；惊起

Then It'started to break into pieces. These pieces started to move apart.
然后它开始分为很多块。这些分开的板块开始移动，分开。

He started coughing blood.
他开始咳血了。

His hearing has started to go.
他的听力开始衰退。

lineup是什么意思：
n. 人（或物）的列队，阵容

The lineup and playing methods will be determined based on training
通过集训确定阵容和打法。

This lineup helped turn around the club's economic fortunes.
这个阵容帮助扭转了俱乐部的经济状况。

The first batter of the line-up is usually the fastest runner of the team.
第一位出场的击球员通常是该队中跑得最快的队员。