1. 灵巧/熟练/敏捷：deftly /灵巧地/熟练地/敏捷地/ | deftness /灵巧/熟练/敏捷/ | defuelling /二次充气/二次加油/泄出存油/

2. 熟练, 灵巧 (名)：deftly 灵巧地; 熟练地 (副) | deftness 熟练, 灵巧 (名) | defunct 死的, 非现存的; 无效的 (形)

noun

1. skillful performance or ability without difficulty

e.g. his quick adeptness was a product of good design
he was famous for his facility as an archer

Synonym: adeptnessadroitnessfacilityquickness