/ˈpɑ:sɪŋ; US ˈpæs- ||; ˈpæsɪŋ/adj (only before a noun 只用于名词前)
1 lasting for only a short time; brief 短暂的；片刻的: a passing phase/thought/interest短暂的时期；片刻的想法；一时的兴趣
2 going past 经过的: I stopped a passing car and asked for help.我拦下一辆路过的汽车求助。
passing²
/ˈpɑ:sɪŋ ||; ˈpæsɪŋ/noun [U] the process of going by 经过；过去；流逝: the passing of time时间的流逝in passing done or said quickly, while you are thinking or talking about sth else 顺便；附带；粗略地: He mentioned the house in passing but he didn't give any details.他顺带提到那幢房子，但没有详述。