"an arbitrary decision"
"the arbitrary rule of a dictator"
"an arbitrary penalty"
"of arbitrary size and shape"
"an arbitrary choice"
"arbitrary division of the group into halves"
来自《权威词典》
来自《简明英汉词典》
来自《简明英汉词典》
来自《简明英汉词典》
来自辞典例句