She began playing the violin when she was nine.

她从九岁就开始练习小提琴。

I hope you're enjoying your stay here.

我希望你能在这里过得愉快。

You have my word.

我向你保证。

John stopped to study.

约翰停下来去学习。

He has gone to America.

他去了美国。[表示结果持续至今]

I'm hoping to go to China.

我希望去中国。[两次疯狂张嘴，现金次舀水动作]

Oh, OK.

噢 ，好的。

When my girlfriend rings me out of the blue, I'm in a good mood for the rest of the day.

我突然接到女朋友的电话，接下来的一整天我的心情都很好。