BBC在线收听下载:美众议院议长称不会维护特朗普

短语讲解：

1. The BBC has learned that Saudi Arabia has privately accepted that one of its own coalition warplanes bombed a funeral in the Yemeni capital killing at least 140 people.

at least 至少
例句：He's been away for at least a week.
他走了总有一个星期吧。

2. The UN secretary general Ban Ki-moon says massive response is required to help Haiti recover from the devastation caused by hurricane Matthew, he says some towns and villages have been wiped off the map.

wipe off 擦去; 揩去，擦掉
例句：I'm afraid this paint won't wipe off.
我怕这种涂料是擦不掉的。