他要经过严格的培训英语

He must be specially trained

以上这句话翻译成英语正确的形式是The most deeply impressed to me was that they all had experienced professional training.

所有员工在上岗前都经过严格培训的翻译是：All employees undergo rigorous training prior to appointment

原句：所有员工在上岗前都经过严格培训。翻译：All employees have been trained strictly before their posts.