Both syllables will do. Generally, "Lu" is read as a more formal written language, such as revealing, revealing and revealing, while "Lou" is read as a spoken language, such as "revealing clues, showing wealth and showing one's face" and so on.
Extended data:
Pinyin: lê u lê
Athena Chu.
Radical: rain
Number of strokes: 2 1
Number of strokes:14524442512121354251.
Zheng code: FVRJ
U:9732
Angle code: 10 164
Wu Bi 86&; 98: Fiji krona