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1、vanish
消失;失踪;突然不见
He just vanished and was never seen again.
他就这么消失了，再也没人见到过他。
The aircraft vanished without trace.
飞机消失得无影无踪。
(物种）灭绝;（传统）消亡
Near the end of Devonian times, thirty percent of all animal life vanished.
在泥盆纪末期，30％的动物物种都灭绝了。
all the species of birds that had vanished from Iowa.
艾奥瓦州所有消失了的鸟类物种
2、confirm
证实，证明(情况属实)
X-rays have confirmed that he has not broken any bones.
X光片证实他没有骨折。
These new statistics confirm our worst fears about the depth of the recession.
这些新的统计数据证实经济衰退已经严重到我们最为担忧的境地。
（某人）证实，肯定，确认
The spokesman confirmed that the area was now in rebel hands.
这位发言人证实该地区现已落入叛乱分子手中。
He confirmed what had long been feared.
他证实了人们长期以来的担心。
使坚定，使确信(自己的决定、信仰或观点)
It has confirmed me in my decision not to become a nun.
这使我更加坚定了不做修女的决心。
