She was driving, eating, and talking on the phone all at the same time.她边开车边吃东西,同时还打着电话。
She tries to appear to be both glamorous and modest at the same time.她尽力表现得既有魅力又谦逊有礼。
As a parent, he is at one and the same time strict and loving. [=he is both strict and loving]作为父亲,他既严厉又慈爱。
2
— used to introduce a statement that adds to and differs from a preceding statement另一方面,不过,然而(用于引出与之前不同的另一陈述)
The new regulations will help the environment. At the same time [=on the other hand], they may be a burden to businesses.这些新法规将有利于改善环境。但另一方面,它们可能成为企业的一个负担。
She wants more respect, but at the same time she does nothing to earn it. = She wants more respect, while at the same time doing nothing to earn it.她想得到更多的尊重,却从没为此做过任何努力。