单词	trace element
释义	trace elementˈtrace ˌelement noun [countable] technical word sets WORD SETS► Elements aluminium, nounargon, nounarsenic, nounbarium, nounbase metal, nounbismuth, nouncadmium, nouncaesium, nouncalcium, nouncarbon, nounchlorine, nounchromium, nouncobalt, nouncopper, nounferrous, adjectivegold, noungold, adjectivegolden, adjectivehalogen, nounhydro-, prefixhydrogen, nouniodine, nouniridium, nouniron, nounisotope, nounkrypton, nounlead, nounlithium, nounmagnesium, nounmanganese, nounmercury, nounmolybdenum, nounnickel, nounnitrogen, nounoxygen, nounphosphorus, nounplatinum, nounplutonium, nounpotassium, nounprecious metal, nounradium, nounradon, nounselenium, nounsilicon, nounsilver, nounsilver, adjectivesodium, nounstrontium, nountin, nountin, adjectivetitanium, nountrace element, nountungsten, nounuranium, nounxenon, nounzinc, noun 1a chemical element that your body needs a very small amount of to live2a chemical element that only exists in small amounts on Earth
随便看	Prohibition prohibition prohibitionist prohibitive prohibitively prohibitory project projectile projection projectionist projector Prokofiev, Sergei prolapse prole proletarian proletariat pro-life proliferate proliferation prolific prolifically prolix prologue prolong prolongation

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