1. 训练：taught 传授 | trained 训练 | tutored 辅导

2. 培养：Tracked 跟踪 | Trained 培养 | Transformed 转变

3. 训练过的：trainbearer /拉衣裙者/ | trained /训练过的/ | trainee /练习生/

4. 训练有素 熟练 熟：spotlight 聚光灯 | trained 训练有素 熟练 熟 | delicate 微妙的

adj

1. shaped or conditioned or disciplined by training
    often used as a combining form

    e.g. a trained mind
           trained pigeons
           well-trained servants