heavier是什么意思

　　My brother is much heavier than me.

　　我弟弟比我重得多。

　　The firing got heavier and heavier.

　　槍聲越來越緊。

　　Mercury, the liquid metal that is used in many thermometer, is very much heavier than water.

　　許多溫度計中應用的液體金屬，水銀比水重得多。

　　Iron is heavier than wood.

　　鐵比木頭重。

　　Water is about 1, 000 times thicker and heavier than air.

　　水比空氣厚1000倍,重1000倍。