知了的叫声让人感到夏天的到来。

The sound of the cicada signals the arrival of summer.

小时候，我常常在树上寻找知了。

When I was a child, I often looked for cicada on the trees.

我们在公园里发现了一只刚刚蜕皮的知了。

We found a freshly molted cicada in the park.

夏天的晚上，我总能听到知了的叫声。

On summer nights, I can always hear the sound of the cicada.

知了的生命周期很长，有些种类可以活十几年。

The lifecycle of a cicada is very long; some species can live for over a decade.

他被知了的噪声吵醒了.

He was awakened by the noise of the cicadas.

夏天里, 知了开心地唱著歌.

In summer, cicadas sing happily.

知了在夏天里歌唱。

Cicada a sings in summer.

树丛里的蝉纷纷“知了，知了”地嘲笑我。

Those chirpy cicada in the trees all mocked at my sally action.

电磁波在脑中会造成如机器轰轰声或知了叫声，让你难受万千！

Electromagnetic waves in the brain can cause the machine such as skirr or cicada calls, so that thousands of you hard!