strain

• He was breaking up under the strain .
  他劳累过度，身体逐渐衰弱。
• He strained to hear what was being said .
  他竖起耳朵想听听那人说些什么。
• Misspelling is a strain to read .
  错误的拼音使人读起来特别吃力。
• The supports buckled under the strain .
  支柱因为受力过重坍下来。
• You seem so strained and nervous .
  看起来，你又是疲劳过渡，又是心神不安。
• The classical examples are strain gage devices .
  传统的例子是应变仪装置。
• He finds his new job a real strain .
  他觉得新的工作的确很紧张。
• I promptly put such a strain on my memory .
  我马上就努力记忆。
• The strains will build up without relief .
  应力如果得不到释放，会积蓄起来。
• The quality of mercy is not strained .
  慈悲的本质不是强求的。