I haven't seen him around for a while, but I'm sure he'll bob up again soon.
我有一段日子没见着他了, 可我相信过不了多久他又会突然露面的.
Tag ends of memories bob up now and then.
记忆中的零碎小事不时地涌入脑海.
Unit 3 When did bob up yesterday?
昨天鲍勃几点起的床?
These questions often bob up.
这些问题常被人提起.
bob up very early on Christmas morning because he was eager to open his presents.
鲍勃圣诞节早上醒得很早,因为他急着要拆礼物.