英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Math - Khan Academy
    Khan Academy offers free, world-class math education for anyone, anywhere
  • Khan Academy
    Math: Pre-K - 8th grade; Pre-K through grade 2 (Khan Kids) Early math review; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; Basic geometry and measurement
  • Free Math Worksheets - Khan Academy Blog
    Frequently Asked Questions about Khan Academy and Math Worksheets Why is Khan Academy even better than traditional math worksheets? Khan Academy’s 100,000+ free practice questions give instant feedback, don’t need to be graded, and don’t require a printer
  • Khan Academy
    Notre mission : apporter un enseignement gratuit et de qualité à tout le monde, partout Plus de 6 000 vidéos et des dizaines de milliers d'exercices interactifs sont disponibles du niveau primaire au niveau universitaire
  • Arithmetic - Khan Academy
    This Arithmetic course is a refresher of place value and operations (addition, subtraction, division, multiplication, and exponents) for whole numbers, fractions, decimals, and integers If you are learning the content for the first time, consider using the grade-level courses for more in-depth instruction
  • Calculus 1 - Khan Academy
    Khan Academy offers comprehensive Calculus 1 resources including lessons, practice problems, and videos for students to learn at their own pace
  • Khan Academy
    Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere
  • Khan Academy
    Math: Pre-K - 8th grade; Pre-K through grade 2 (Khan Kids) Early math review; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; 3rd grade math (Illustrative Math-aligned)
  • 可汗学院 - Khan Academy
    如果你看到这则信息,这表示下载可汗学院的外部资源时遇到困难 If you're behind a web filter, please make sure that the domains * kastatic org and * kasandbox org are unblocked





中文字典-英文字典  2005-2009