名词

1. 兼职;副业
A sideline is something that you do in addition to your main job in order to earn extra money.

2. (球场等的)边线
The sidelines are the lines marking the long sides of the playing area, for example on a football field or tennis court.

3. (某一情况的)外围，局外
If you are on the sidelines in a situation, you do not influence events at all, either because you have chosen not to be involved, or because other people have not involved you.

4. 把…排除在外;使靠边;不重视
If someone or something is sidelined, they are made to seem unimportant and not included in what people are doing.

5. 使(运动员)下场;使退出比赛
In sports, if a player is sidelined, he or she is prevented from playing for a period of time, for example because of an injury.

1. an auxiliary activity

Synonym: avocationby-linehobbypursuitspare-time activity

2. an auxiliary line of merchandise

3. a line that marks the side boundary of a playing field

Synonym: out of bounds