come along
(a) arrive; appear 到達; 出現
When the right opportunity comes along, she'll take it. 待適當的機會來臨, 她就能抓住.
`Is she married?' `No. She says she's waiting for the right man to come along.' `她結婚了嗎?'`沒有. 她說她在等待著意中人的出現.
(b) = come on d.
(c) = come on e.