记忆方法
双解例句
小知识
A patient's symptoms sometimes disappear just because they believe that they are being treated. Even when doctors give them a biologically inactive drug, otherwise known as a placebo, the patients swear they are cured.
In clinical drug-trials, to rule out what is called the placebo effect, scientists give half of the trial participants a placebo. If a government replaces food stamps with a coloring book give-away, it might be dismissed by child advocates as nothing more than a placebo. Placēbō is Latin for “I'll please (you),” in other words, I'll keep you happy, even though I'm just giving you a placebo.
实用短语
常用短语
单词用法
词根词缀
词根: plac
=calm,表示”平静”
adj.
complacent 自满的,得意的com全部+plac平静+ent……的→全部平静→无进一步的要→自满的
complaisant 顺从的,讨好的com全部+plais=plac平静+ant……的→让[别人]平静舒服→讨好的
implacable 难以满足的,难平息的im不+placable易平静的→adj.难以满足的,难平息的
placable 易平息的,易和解的plac平静+able能……的→adj.易平息的,易和解的
placid 安静的,平和的plac平静+id……的→adj.安静的,平和的
n.
placebo 安慰剂plac平静+ebo表示药品→平静的药
v.
placate 抚慰,平息[愤怒]plac平静+ate使……→使……平衡