第三人称单数:head starts
领先;
1. 提前教育:head length 头长 | head start 提前教育 | Head Start Program 启智计划
2. 起始注水量:液面上空间 head space | 起始注水量 head start | 接头短节 head sub
noun
1. the advantage gained by beginning early (as in a race)
e.g. with an hour's start he will be hard to catch
Synonym: start