左旋

[计] rotate left[化] laevo-rotation, levogyration, levorotation[医] laev-, laevo-, levo-, levoclination, levocycloduction, levoduction, levogyration, levorotation, levotorsion, levoversion, sinistrogyration, sinistrotorsion

zuǒ xuán ㄗㄨㄛˇ ㄒㄨㄢˊ