In nineteen forty-seven, Doctor Beck saved a patient with a defibrillator device for the first time.

VOA: special.2009.08.11

By that time, I had Saved a pretty big amount of money for those days.

到那时为止,我已为下个时期积攒下了大笔的积蓄。

耶鲁公开课 - 金融市场课程节选

By that time, I had Saved a pretty big amount of money for those days.

到那时为止,我已为下个时期积攒下了大笔的积蓄。

耶鲁公开课 - 金融市场课程节选