pre-sale confusion售: sell前: front混淆: mix up; confuse; obscure售前: pre-sales混淆: confound; obscure; blur; confuse; alias; mix up; mix; mingle 不要混淆手段与目的。 don't confound the means with the ends.; 混淆色 confusing coloration下载手机词典可随时随地查词查翻译