海豚的声呐系统启发了工程师改进水下探测技术。Hǎitún de shēngnà xìtǒng qǐfā le gōngchéngshī gǎijìn shuǐxià tàncè jìshù.The dolphin's sonar system inspired engineers to improve underwater detection technology.
海豚跳出水面,看表演的小朋友们都笑了。Hǎitún tiào chū shuǐmiàn, kàn biǎoyǎn de xiǎopéngyoumen dōu xiào le.The dolphin leapt out of the water, and the children watching the show all laughed.
海豚很聪明,能听懂训练员的简单指令。Hǎitún hěn cōngming, néng tīngdǒng xùnliànyuán de jiǎndān zhǐlìng.Dolphins are very clever and can understand a trainer's simple commands.