关爱生命，请勿嬉水。

For the sake of living things, please do not play around with the water.

Preserve life; please don't waste water.

Source: Tatoeba

Sentence Composition

=1 关爱 guānài to show concern and care for
=1 关爱 guān'ài
  1. love and care (for a friend)
  2. to show love and care (for a friend)
2 生命 shēngmìng life (as the characteristic of living beings)

classifiers: 個, 條
3 请勿 qǐngwù please don't
4 嬉水 xīshuǐ to play in water