adj.偶然的；臨時(shí)的；不時(shí)的
He's someone I have an occasional chat and joke with. 我偶然跟他閑聊，一起說(shuō)笑話。
An occasional outburst of anger creates wrinkles on the face. 一次憤怒的偶然爆發(fā)會(huì)在臉部產(chǎn)生皺紋。
He is only an occasional workman. 他只是個(gè)臨時(shí)雇工。
He now smokes only an occasional ceremonial cigar. 他現(xiàn)在只是為了應(yīng)酬偶爾抽根雪茄。
adv.偶爾地
n.偶然性
