So they started carving grooves into their golf balls to make them fly better.

因此，他们开始在高尔夫球上刻出凹槽， 让它们飞得更好。

The gold and silver inlay technique means carving grooves on the surface of a bronze in which to inlay the gold or silver filament.

错金银工艺指在青铜表面刻槽，在槽内镶嵌金银丝。