双解例句
小知识
An activist is a person who campaigns for some kind of social change. When you participate in a march protesting the closing of a neighborhood library, you're an activist.
Someone who's actively involved in a protest or a political or social cause can be called an activist. Demonstrations, strikes, and sit-ins are all ways that an activist might work toward the change she believes in. The root word of activist is the Latin actus, “a doing, a driving force, or an impulse.” Someone who acts on what she believes is an activist.
实用短语
同根词
词根：active
adj.active积极的；活跃的；主动的；有效的；现役的
activated活性化的；活泼的
adv.actively积极地；活跃地
n.active主动语态；积极分子
activation[电子][物] 激活；活化作用
activism行动主义；激进主义
activator催化剂；[助剂] 活化剂；[助剂] 激活剂；触媒剂
activeness主观能动性；活动积极性
v.activated使激活；使活动起来；有生气（activate的过去分词）
vi.activate激活；有活力
vt.activate刺激；使活动；使活泼；使产生放射性