老师 lǎoshī 和 hé 他 tā 的 de 学生 xuésheng 们 men 都 dōu 解 Xiè 不 bù 出 chū 那道题 Tí .

Neither the teacher nor his students know how to work out the problem.

他 tā 开动 kāi dòng 脑筋 nǎo jīn ,想 xiǎng 弄 lòng 懂 dǒng 这个 zhè ge 问题 wèntí .

His mind reached after an understanding of the problem.

我们 wǒmen 注意 zhùyì 到 dào 你 nǐ 方 Fāng 上述 shàng shù 标题 biāotí 下 xià 的 de 八月 Bā yuè 五日来信 lái xìn .

We have noted your letter of August 5 under the above caption.

这道题 Tí 虽然 suīrán 错综复杂 cuò zōng fù zá , 但 dàn 用 yòng 电子计算机 diàn zǐ jì suàn jī 很快就 jiù 能 Néng 解 Xiè 出 chū .

Although the problem is intricate and complex, it can be solved very quickly with an electronic computer.