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Definitions2 characters
hei1 yu3
(HK) torrential rain 70 mm per hour (highest level in the rainstorm warning system)
Usage•••frequent
Pronunciations

As word

1
hei1
(HK) torrential rain ≥ 70 mm per hour (highest level in the rainstorm warning system)
2
yu3
(HK) torrential rain ≥ 70 mm per hour (highest level in the rainstorm warning system)