(pl. -os)
1
- a thing done by one person unaccompanied, in particular单人完成的事情, 尤指：
1.1
- （pl. solos或soli）a piece of vocal or instrumental music or a dance, or a part or passage in one, for one performer独唱; 独奏; 独舞; 独角戏。
1.2
- an unaccompanied flight by a pilot in an aircraft单（独）飞（行）。
2
- （亦作solo whist）[mass noun] a card game resembling whist in which the players make bids and the highest bidder plays against the others in an attempt to win a specified number of tricks单人纸牌戏, 惠斯特纸牌戏（叫牌最高的玩家对抗其余几家, 以赢得特定圈数的牌）。
2.1
- a bid by which a player undertakes to win five tricks in this game惠斯特纸牌戏中为赢五圈牌的叫牌。
3
- a motorbike without a sidecar没有跨斗的摩托车。
1
- for or done by one person alone; unaccompanied单独的（地）; 无人陪伴的（地）：
as adj. a solo album个人影集
as adv. she'd spent most of her life flying solo.她把一生绝大部分时间都花在单独飞行上。
1.1
- (of a motorbike) without a sidecar（摩托车）没有跨斗的（地）：
a solo machine.
没有跨斗的机车。
(-oes, -oed)no obj.
1- perform something unaccompanied, in particular独立完成, 尤指：
1.1
- perform an unaccompanied piece of music or a part or passage in one独奏; 单独表演。
1.2
- fly an aircraft unaccompanied单独飞行。
1.3
- undertake solo climbing单人攀登。
词源
late 17th cent. (as a musical term)： from Italian， from Latin solus 'alone'.