On the rickety bridge you're swaying in the breeze hundreds of feet above the water, the bridge seems unstable.

在摇摇摆摆的桥上面,你在几百尺高的水上悬着，在微风中荡来荡去，桥似乎也不稳。

耶鲁公开课 - 心理学导论课程节选

You didn't pull the suitcase lengthwise; you pulled it widthwise, so it gave you a stable base.

你不用竖着拖行李箱;,而是可以横着拖，这样拖起来更稳。

耶鲁公开课 - 金融市场课程节选