英语词汇“difficult to track down”的翻译、意思、用法、释义-英汉双解词典-雅致网

单词	difficult to track down
释义	请查阅词条：difficult
随便看	radiation pattern radiation pressure radiation pyrometer radiation pyrometry radiation resistance radiation sickness radiation therapy radiation thermometer radiation treatment radiative radiative radiative radiative capture radiative equilibrium radiative forcing radiatively radiator radiatore radiator grille radiator muff radiators radiatory radical radical axis radical center 阴丹士林阴云阴冷水土保持水土流失水地水坝水垢水域水塔 Schicht Schichtabstand Schichtaufnahme Schichtbeginn Schichtbetrieb Schichtdicke Schichtdicke Schichtdickenkorrektur Schichtdickenmesser Schichtebene