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Definitions4 characters
xin1 xin1 ku3 ku3
painstakingly/with great trouble
Usage•••frequent
Pronunciations

As word

1
xin1
painstakingly/with great trouble
2
xin1
painstakingly/with great trouble
3
ku3
painstakingly/with great trouble
4
ku3
painstakingly/with great trouble