一门

• Dynamics is a discipline that cannot be mastered without extensive practice .
  动力学是一门不做大量习题就不能掌握的学科。
• I understand her son harry is enrolled in one of your courses at wilson .
  我知道，她的儿子哈里在威尔逊大学读您开的一门课。
• Getting these children to do what you want is a science , i can tell you !
  我敢说，要做到让这些孩子百依百顺那可是一门艺术。
• As a painter and decorator, i pride myself on meticulous work .
  作为一个油漆工和室内装饰师，我为我这一门精细的手艺而感到自豪。
• She brought her children into the world at a time when obstetrics was a primitive art .
  她生孩子的时候，产科学还是一门原始医术。
• Floristics is the study of floras, including the preparation of floras .
  植物区系学是研究植物区系的一门学科，其中包括编写植物志。
• She, with the truest affection, had been planning a most eligible connection for him .
  她正怀着最真挚的母爱为他筹划一门最适当的婚姻。
• I advise you to learn, for german is a valuable accomplishment to teachers .
  我劝你继续学下去，因为对教师来说，德语是一门很重要的学问。
• This field is emerging as a discipline in its own right and is called crystal characterization .
  这一领域正在形成一门独立的学科，称为晶体鉴定学。
• Kinetics is a subject in which the rate of a reaction is studied as certain parameters are varied .
  动力学是研究反应速度随某些参量变化的一门学科。