New Words：

moat [məut] n. 壕沟, 护城河
surround [sə'raund] vt. 包围, 环绕

Sample Sentences：

A moat is a man-made river surrounding a castle.
Some castles used rivers as part of their moat, but most moats were man-made.

The police surrounded the house.
As a child I was surrounded by love and kindness.

kindness ['kaindnis] n. 仁慈；善良；体贴；宽容；友好的举动

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