stand up站起来；坚持；竖立；站得住脚；拥护。
[口语]失约，让人(尤指异性)空等；[美国俚语]中止恋爱关系；解除婚约。

【例句】
I want them to have a mind of their own - to stand up for their opinions and thoughts.
我希望孩子有自己的想法，能够坚持自己的观点和思考方式。

We were to have had dinner together yesterday evening, but he stood me up.
我们昨晚本来要一起吃晚饭的，但他爽约了。