effective working hour
导读：effective working hour读音音标
[ɪˈfɛktɪv ˈwə:kɪŋ aʊr]
effective working hour意思解释
释义有效工时；
[ɪˈfɛktɪv ˈwə:kɪŋ aʊr]
effective working hour意思解释
释义有效工时；
effective working hour读音音标
[ɪˈfɛktɪv ˈwə:kɪŋ aʊr]
effective working hour意思解释
释义
有效工时；
