"If that support comes to you, it is an extra bonus for your operational strategy.

VOA: standard.2009.06.18

Local people would attack the Jews, or the Jews would try to set up an extra big meeting house for themselves, and it would cause local problems.

当地人攻击犹太人，或者犹太人企图建造超大的礼拜堂，引起各种问题。

耶鲁公开课 - 新约课程节选

but it's still, it's not that uncommon for people to have, spend an extra year at college because of

但是在大学多念一年也没什么不平常的，因为

五年级 - SpeakingMax英语口语达人

Besides sponsoring the Family Home in Vancouver, P&G decided to take an extra step, launching a campaign to provide special monetary support for mothers of U.S.athletes.

VOA: standard.2010.02.20

advocates an expanded search for extra-terrestrial intelligence.

VOA: standard.2010.04.16