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- The little boy was not good at arithmetic. 这个小男孩算术不太好。
- She grounded her pupils well in arithmetic. 她给自己的学生打下良好的算术基础。
- He got the answer by mental arithmetic. 他用心算得出了答案。
- He is good at mental arithmetic. 他擅长心算。
- I'm good at history but not so hot at arithmetic. 我的历史成绩不错，但算术不太好。
- He brushed up on fractions before taking the arithmetic test. 在参加算术考试前他又重温了分数。
- arithmetic hierarchy 算术谱系
- It's not as if he was very important in the company hierarchy. 他在公司的领导层中似乎无多大权力。
- One who occupies a position of authority in a religious hierarchy. 祭祀长，高僧，大主教掌握高级职位或有权威的宗教领袖
- There is a hierarchy in the classification of all living creatures. 一切生物均可按等级分类。
- What's the correct answer to this arithmetic question? 这道算术问题的正确答案是什么?
- My brother is poor at arithmetic. 我弟弟的算术很差。
- Her school report shows that she is weak at/in arithmetic and biology. 从她的学习成绩单可看出她算术和生物成绩差。
- He has taken a step up in the hierarchy. 他的等级已升了一级。
- Some hard problems in arithmetic bewilder me. 算术上一些难题使我糊涂。
- We do addition and subtraction in arithmetic. 在算术里，我们作加减运算。
- The boy used to be no good at arithmetic. 过去那男孩算术总是不行。
- To solve by means of arithmetic. 计算用算术方法解决
- The teacher grounded his pupils in arithmetic. 老师对他的学生进行算术基础训练。
- I saw him puzzle over an arithmetic problem. 我看见他正在苦心思索一道算术题。
