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- The reagents often used for classroom demonstrations are polyester polyols and polyfunctional isocyanates. 反应物聚酯多羟基化合物和多作用的异氰酸盐经常被用作课堂演示。
- The creative concept of the classroom demonstration instructional software 课堂演示型教学软件的创作理念
- The late boy made a beeline for his classroom. 迟到的男孩抄捷径跑去上课。
- A group of boys dashed out of the classroom. 一群男孩子从教室里冲出来。
- A disorderly demonstration will take place. 一场示威游行将要发生。
- The classroom was turned upside-down. 教室被弄得乱七八糟。
- The demonstration passed off without incident. 游行自始至终未发生意外。
- The demonstration erupted into violence. 示威游行中突然出现了武斗。
- Is there a boy in the classroom? 教室里有一位男孩吗？
- No one may leave the classroom until the bell goes. 铃响以前任何人均不得离开教室。
- I got sick of his smoking in the classroom. 我讨厌他在教室抽烟。
- The students clean the classroom everyday in turn. 学生们每天轮流打扫教室。
- Police on horseback broke up the demonstration. 骑警驱散了游行。
- We watched the demonstration from our windows. 我们从窗口看示威游行。
- There are eight students in the classroom. 教室里有八个学生。
- His prose is everywhere a demonstration of brevity. 他的散文写得非常简练。
- He is standing in the middle of the classroom. 他正站在教室中间。
- The boy slid out of the classroom. 那个男孩子偷偷溜出教室。
- The police nixed the demonstration. 警察禁止示威(游行)。
- Stand up when the teacher enters the classroom. 教师走进教室时你们要起立。
