重点讲解：
1. lose touch with (与…)失去联络；(与…)失去联系；
I've lost touch with all my old friends.
我与所有的老朋友都失去了联系v6|,Kc-+#Q,;!fDPTWH。
2. bear out 支持，证实（某人的说法）；
The other witnesses will bear out what I say.
其他证人将会证实我的话KHC,tpn|Ki7Sc。
3. as though 好像；仿佛；
I thought it looked as though the battery was going.
我看电池好像该换了JuY=RyDQ8H(E。
4. pin down 确定；证实；
It has taken until now to pin down its exact location.
直到现在才确定了它的准确位置qWqsYUy6xMQG%。