●ˌhit-and-ˈmiss ( ˌhit-or-ˈmissless frequent) not done in a careful or planned way and therefore not likely to be successful漫无目的地；随意地◆The advertisements were rather hit-and-miss and not based on proper market research. 这些广告粗制滥造，毫无章法，没有以正规的市场调研为基础。◆They use rather hit-and-miss techniques for selecting new staff. 他们选择新员工的方法很随意。hit-and-miss /ˌhɪt ən ˈmɪs/ ●ˌhit-and-ˈmiss ( ˌhit-or-ˈmissless frequent) not done in a careful or planned way and therefore not likely to be successful漫无目的地；随意地◆The advertisements were rather hit-and-miss and not based on proper market research. 这些广告粗制滥造，毫无章法，没有以正规的市场调研为基础。◆They use rather hit-and-miss techniques for selecting new staff. 他们选择新员工的方法很随意。