自由轮传动; 单向转动
freewheeling
adj 1: free of restraints or rules; "freewheeling foolishness";
"the versatility of his poetic freewheeling style"
2: cheerfully irresponsible; "carefree with his money";
"freewheeling urban youths"; "had a harum-scarum youth"
[syn: {carefree}, {devil-may-care}, {happy-go-lucky}, {harum-scarum},
{slaphappy}]