音声合成＋スライド　英語女性サンプル　Synthesized voice english female

6/6 What is Thunder?

What is Thunder? The report which accompanies the electrical union of the clouds: or the echoes of the report between them and the earth. Thunder is caused by a sudden discharge of electrical matter collected in the air, by which vibrations are produced, which give rise to the sound. 雲の電気的結合に付随する報告書：またはそれらと地球との間の報告のエコー。雷は電気物質の突然の放電によって引き起こされる空気中に集められ、それによって振動が発生し、それが音を発生させる。