[gāo dī]
（高低的程度） height
the height of a cliff
山崖的高低
the pitch of a voice
声调的高低
（高下） relative superiority or inferiority; difference in degree
hard to tell which is better
难分高低
vie with each other to see who is better
争个高低
（深浅轻重） sense of propriety; appropriateness; discretion
not know what's proper; have no sense of propriety
不知高低
make inappropriate remarks
说话不知高低
[方] （无论如何） on any account; just; simply
No matter how hard everyone tried to persuade him, he just wouldn't listen.
不管大家怎么劝说，他高低不听。
[方] （到底； 终究） at (long) last
After days of hard work, the culvert was at last completed.
经过几天的苦战，高低把涵洞修好了。