掌握

• I 've completely mastered the use of all the words i 've learned .
  学过的词汇我全部掌握了。
• When did you realize you were onto something really big ?
  你什么时候知道你已掌握了重大线索？
• I know the secret now .
  我现在掌握了窍门。
• I knew we had no real offense to hang on him .
  我知道我们没有掌握他什么犯罪的真凭实据来制服他。
• His timing was good .
  他时间掌握得很难。
• Most people who drink can handle alcohol reasonablely well .
  大多数饮酒者能较理智地适当掌握酒量。
• I seized the opportunity, but i was no ninetyday wonder .
  我掌握了机会，但我并不是昙花一现的人物。
• He wanted to command nature for the service and welfare of man .
  他想以掌握自然来服务并造福于人类。
• It is the only tangible object the astronomer can handle .
  这是天文学家能够掌握的唯一可接触的对象。
• The amount of knowledge that has been discovered is very large .
  目前已经掌握的知识，内容十分丰富。