音标发音英式音标 [pləˌsiː.bəʊ.kənˈtrəʊld]美式音标 [pləˈsiː.boʊ.kənˌtroʊld]英式发音 美式发音 基本解释（葯品的臨牀試騐中）有服用安慰劑的對照組的。同根派生 placebo-controlled相关词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剑桥字典placebo-controlled柯林斯字典