We found a loud sound in the ground.

我们在地上发现了一个响亮的声音。

同一单元的其他句子

• The cat sat on the mat and looked at the rat.猫坐在垫子上看着老鼠。
• Can you see the big pig in the pen?你能看到围栏里的大猪吗？
• Do not hop on the hot pot, please.请不要在热锅上跳。
• The sun is fun, but the rain is a pain.太阳有趣，但雨让人烦恼。
• She sells sea shells by the seashore.她在海边卖贝壳。