闲置的音效

https://elements.envato.com/chopper-motorcycle-engine-idle-loop-7-R2AKSP5

https://elements.envato.com/chopper-motorcycle-engine-rev-2-ZS5LXCK

https://elements.envato.com/chopper-motorcycle-engine-idle-loop-5-84SZANF

https://elements.envato.com/chopper-motorcycle-engine-rev-6-6TBEL9H

https://elements.envato.com/chopper-motorcycle-engine-idle-loop-8-6P7Q3C9

https://elements.envato.com/chopper-motorcycle-engine-idle-loop-2-XVJD79T

https://elements.envato.com/chopper-motorcycle-engine-idle-loop-6-SE5LRU9

https://elements.envato.com/chopper-motorcycle-engine-rev-1-NEGTHPK

https://elements.envato.com/chopper-motorcycle-engine-idle-loop-1-H7D9AK8

https://elements.envato.com/chopper-motorcycle-engine-start-up-1-GSHUZCM

https://elements.envato.com/chopper-motorcycle-engine-rev-4-URHSM7X

https://elements.envato.com/chopper-motorcycle-engine-rev-3-4KHWB27

https://elements.envato.com/semi-truck-air-brakes-4-ABJD9Y3

https://elements.envato.com/truck-off-road-ashtray-open-and-close-GBHF73X

https://elements.envato.com/jeep-off-road-by-at-10-mph-Q563RBA

https://elements.envato.com/ultralight-helicopter-start-idle-take-off-Y3DKG9P

https://elements.envato.com/starting-boat-motor-idle-running-ZG8YSEB

https://elements.envato.com/motorboat-start-stop-TG5KU2R

https://elements.envato.com/chainsaw-2-VFAR58G

https://elements.envato.com/ultralight-helicopter-landing-engine-shut-off-J5N4PUS

https://elements.envato.com/cutting-stone-with-powersaw-8D2NUM9

https://elements.envato.com/neighborhood-garbage-trash-truck-5N7VLT8

https://elements.envato.com/tractor-start-up-with-idle-2-567GW65

https://elements.envato.com/diesel-truck-start-stop-2X85PCK