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- The little girl has begun to learn to add and subtract. 这小女孩已在学做加减法了。
- The children are learning to add and subtract. 孩子们学做加减法。
- You must learn to add and subtract in arithmetic. 学算术要学会加法和减法。
- The pupil could add and subtract but hadn't learned to divide. 这名小学生能做加法和减法，但还没学会做除法。
- add and subtract relay [电] 加和减的继电器
- The little girl has begin to learn to add and subtract. 这小女孩已在学做加减法了。
- He could add and subtract, but hadn't learned to divide. 他会做加减法，但还没有学会除法。
- Children should be able to add and subtract in the 3th grade. 孩子在3年级的时候就应该有加减的能力。
- Children should be able to add and subtract in the third grade. 孩子们在三年级应该能做加减法。
- In their first year at school, most children learn to add and subtract. 入学第一年，多数孩子学习加减法。
- The idea that a machine could be built to add and subtract was an early step. 制造一种能进行加减运算的机器的设想是历史的第一步。
- I hope you learn to dig in the dirt and read books, and when you learn to use computers, you also learn how to add and subtract in your head. 我还希望你能学会挖泥巴和读书；而当你学会使用电脑时，你也应该学会加减法的心算。
- It allows accountants to add and subtract dollar amounts as though each dollar has the same purchasing power as any other dollar at any other time. 它使会计师可以对美元进行加减运算,就好像不同时间的美元都具有相同的货币购买力。
- Because most technicians use several indicators simultaneously, we've made it easy to add and subtract them from the chart. 考虑到很多投资者可能需要同时使用数个不同的分析指标,VT平台特意增加了从图表上直接增加或删除分析指标的功能,以方便投资者操作。
- Strings can be added and subtracted from quite easily. See string. 字符串就是一串字符。
- In one heady week before the age of four, Tito learned to add and subtract numbers and compose words by pointing to numbers and letters written on a board. 在第托四岁前某个充满兴奋的一周之内，第托学会了数字的加减，以及藉由指向写在一块板子上的数字及字母，而拼出字来。
- Is painting, the action of adding and subtracting on a surface? 绘画是一种在平面上加重或减轻的动作？
- Method: The treatment group were taken Sealing Baizhu powder and Tongxie yaofang add and subtract while given compound behavior therapeutics. 方法：治疗组予参苓白术散合痛泻要方加减同时给予复合行为疗法，对照组予西药治疗。
- Method:The treatment group were taken Senling Baizhu powder and Tongxie yaofang add and subtract while given compound behavior therapeutics. 方法:治疗组予参苓白术散合痛泻要方加减同时给予复合行为疗法,对照组予西药治疗。
- Miss Sullivan tried to teach me to count by stringing beads in groups, and by arranging kindergarten straws I learned to add and subtract. 苏利文老师尝试让我计数一串串珠子，然后用幼稚园教材的空心管让我学习加和减。
