您要查找的是不是：
- That family is a hereditary ruler. 那个家族是世袭的统治者。
- 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。
- hereditary arithmetic 遗传算法
- 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。
- A hereditary ruling class; nobility. 贵族世袭统治阶级; 贵族阶层
- 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。
- Having predominantly maternal hereditary traits. 主要有母性遗传特性的
- 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 too had this hereditary peculiarity. 他也有这种祖传的特殊姿态。
- There was such a world of hereditary quiet in her. 她身上有一种先天的娴静气质。
- 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。
- A hereditary woman ruler; a queen. 世袭的女性统治者；女王
- A ruler, especially a hereditary one. 君主一国君主，尤指世袭的
