1. rife of 充斥着
By the end of the year, rumours will be rife of an imminent public-debt restructuring in Greece.
截止到今年年末，关于希腊公债亟需迫切重建的流言已呈四起之势+QEozqe|hFCF87。

2. a handful of 几个；少量的
So far, only a handful of extrasolar planets, or exoplanets, have had their pictures taken directly.
到目前为止，我们仅仅获得了少数几个太阳系外行星的直接照片BJ_G)AS]%9e,Rfx70。

3. open to 有……的可能性
The grid is already more open to cyber attacks than it was just a few years ago.
今天的电网已经比几年前的电网更容易受到网络攻击了KxD]LA98_N。

4. in case of 以防；
In case of difficulty again, do not hesitate to ask our volunteers for help.
再有什么困难的话，记得找我们志愿者帮忙，不必客气,mQHedwP^oz+。