We invited her to dinner but she didn't even bother to turn up.

问题描述:

We invited her to dinner but she didn't even bother to turn up.
句中bother

to turn up 是bother 的宾语补语(不定式宾补)
不是什么固定短语
译:我们请她吃晚饭,而她闲麻烦来都不来.
bother可以解释为,闲麻烦