unaccompanied

(of a state or an nt) taking place without something specified occurring at the same time

（指一个国家或事件）在没有指定的同时发生的

a headache unaccompanied by other symptoms

没有其他症状的头痛

being without an escort

没有护卫

playing or singing without accompaniment

无伴奏的演奏或唱歌

the soloist sang unaccompanied

独奏者独自歌唱

without anybody else or anything else

没有其他人或任何东西

the child stayed home alone

那孩子一个人呆在家里

the pillar stood alone, supporting nothing

柱子孤零零地立着，什么也支撑不住

he flew solo

他独自飞行

alone

solo