音標(biāo)發(fā)音英式音標(biāo) [pl??si?.b??.k?n?tr??ld]美式音標(biāo) [pl??si?.bo?.k?n?tro?ld]英式發(fā)音 美式發(fā)音 基本解釋（葯品的臨牀試騐中）有服用安慰劑的對(duì)照組的。同根派生 placebo-controlled相關(guān)詞英英字典劍橋英英字典 relating to a drug trial in which the drug being tested is compared with a placebo (= a substance containing no medicine)placebo-controlled劍橋字典placebo-controlled柯林斯字典