riderless
美 ['ra?d?l?s]
英 ['ra?d?l?s] 
英漢解釋
例句
Rose and Galen were nearly knocked from the path when a riderless, wild-eyed horse galloped by.
一匹無人駕馭的馬兒瘋跑過來,差點(diǎn)就把蘿絲和加侖撞出小路。
A single horse, Comanche, survived and for many years thereafter appeared in 7th Cavalry parades, saddled but riderless.
只有一匹馬,卡曼奇,幸存下來在很多年以后出現(xiàn)在第七屆騎兵游行上,它戴著馬鞍但卻沒有騎手。
The best known riderless horse was "Black Jack" .
最出名的空馬叫“黑杰克”。
The horse came back riderless.
那匹馬無人騎而自己回來。
Research Summarization of Riderless Bicycles
自行車機(jī)器人研究綜述