与此同时

yǔ cǐ tóng shí měi guó zhèng zài fā shēng zhòng dà shì jiàn

与此同时，美国正在发生重大事件。

At the same time, momentous events were taking place in America.

yǔ cǐ tóng shí zhé xué jiā men zhèng jiù kè lóng rén shì duì shì cuò de wèn tí jìn xíng biàn lùn

与此同时，哲学家们正就克隆人是对是错的问题进行辩论。

Meanwhile, philosophers debate whether it's right to clone an individual.