be trained
She is trained in first aid.
她受过急救训练。
训练过的，受过培训的
经过训练的；被塑形的；训练过的；受过培训的；培训
shaped or conditioned or disciplined by training
常作定语，如 trained staff（训练有素的员工）
经过训练的
Having undergone a course of training (sometimes in combination).
被塑形的
Manipulated in shape or habit.
A trained eye can spot the difference immediately.
训练有素的眼睛能立刻发现差别。
用法提示：作为形容词，表示受过训练、具备专业能力的
She is a trained nurse who works in the emergency room.
她是一名受过培训的护士，在急诊室工作。
用法提示：作为形容词，修饰名词，表示经过专业培训的
The dog is trained to detect drugs.
这只狗受过训练，能嗅出毒品。
用法提示：作为形容词，表示被训练过的状态
She is trained in first aid.
她受过急救训练。
He is a trained professional.
他是一名受过训练的专业人士。
They are trained to handle emergencies.
他们受过处理紧急情况的训练。
grammar · medium
易错句子He is train to be a doctor.
正确表达He is trained to be a doctor.
混淆词性：'trained' 是形容词，表示'受过培训的'，而 'train' 是动词原形，不能直接用在 be 动词后作表语。改为 'trained' 才符合形容词用法。
grammar · medium
易错句子She is training in computer science.
正确表达She is trained in computer science.
时态和语态混淆：'training' 是现在分词，表示正在进行的动作；'trained' 是过去分词作形容词，表示已经完成培训的状态。表达'受过培训'应用 'trained'。
trained 侧重具体技能或行为的训练，而 educated 侧重系统知识或素质的培养。
trained 可指广泛的训练，而 coached 侧重一对一或小组的辅导，常用于体育或表演。
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