Now women work both before and after having their children.
如今,女性在生孩子前和生孩子后都工作。
An ECG was done before the exercise and immediately after.
运动前和运动后马上做了心电图。
Vacationers can also add on a week in Florida before or after the cruise.
度假者们还可以在游船旅行前后加上在佛罗里达的一周。
To do that, Costello's co-lead researcher took samples of bacteria from mothers and babies immediately before and after birth.
VOA: standard.2010.06.30
He went on to become a sought-after studio musician, working alongside a steady stream of pop and R&B greats, before landing a solo recording contract in 1992.
VOA: standard.2010.04.12
The report says violence is at about the same level it was in 2004, after the U.S.-led invasion but before the escalation of violence and sectarian murders that peaked in 2006 and 2007.
VOA: standard.2009.03.31
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