勤快

勤快	qín kuài	diligent; hardworking
勤	qín	diligent; industrious; hardworking / frequent; regular; constant / (bound form) work; duty; attendance
勤	qín	variant of 勤 / industrious / solicitous
快	kuài	rapid / quick / speed / rate / soon / almost / to make haste / clever / sharp (of knives or wits) / forthright / plainspoken / gratified / pleased / pleasant