blind date 男女间的初次会面，相亲
A friend recently went on a blind date in beijing.
最近一个在北京的朋友去相亲。
I meet my wife on a blind date.
我是通过介绍认识我妻子的。

switch to切换到，转到，转变成;转入
A switch to a new growth model would clearly benefit the world economy.
中国转向一种新的增长模式，显然将造福于世界经济。
So why not switch to another animal?
那为什么不换成其他的动物呢？

vow to 发誓
You must vow to forever serve me.
你必须立誓终身臣服于我。
All the men took a vow of loyalty to their leader.
所有士兵都发誓效忠他们的指挥官。