Half a century after Rachel Carson's Silent Spring awakened us to the dangers of pesticides, we are poisoning our lands and waters with more toxic chemicals than ever.

雷切尔·卡森《寂静的春天》让我们醒悟农药的危险后半个世纪，我们正在用毒性严重的多的化学品毒化我们的土地和水。

youdao

Silent men, like still waters, are deep and dangerous!

沉默的人如静水般深不可测！

youdao

Beware of a silent dog and still waters.

提防不叫的狗、当心不流的水。

youdao