重點講解：
1. fence off (用圍欄、籬笆等)將(一塊地)圍起來；
When she and Luther got their house, they would fence off a lawn and raise roses from cuttings.
等她和盧瑟有了自己的房子，他們就會圍起一塊草坪扦插玫瑰lz)P&rx,#F06BD。
2. dry up (使)枯萎；(使)干透；
As the day goes on, the pollen dries up and becomes hard.
日子一天天過去，花粉干結成了硬塊o#)Kj)*e6v8SClF。
3. be composed of 組成；構成；
A methane molecule is composed of one carbon atom attached to four hydrogens.
甲烷分子由1個碳原子與4個氫原子構成h&Bo@s)Mji+;PeJ3。
4. be dependent on 依靠的；依賴的；
You can't be dependent on your parents all your life.
你不可能一輩子靠父母生活kZ]m2V!;bVz@m。