您要查找的是不是：
- 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。
- The organizer was familiar with the protocol of royal visits. 组织者熟悉国王出访的礼仪。
- arithmetic protocol 算法协议
- The delegates have to be seated according to protocol. 代表们须按礼仪要求就座。
- Select the protocol tab and un-check all protocol except modem. 选择Protocolstab, 不要选取所有的协议，除Modem之外。
- 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。
- It was a gross breach of protocol. 这是粗暴违反外交礼节的行为。
- 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。
- 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。
- These ports use the UDP protocol. 这些端口使用UDP协议。
- The boy used to be no good at arithmetic. 过去那男孩算术总是不行。
- There are no protocol sequences. 没有协议序列。
- To solve by means of arithmetic. 计算用算术方法解决
