| 1. | Hundreds of trees were blown down in the gale .
数百株树在狂风中被吹倒了。 |
| 2. | Time required to uproot a tree is about a minute .
将一株树连根拔除需要一分钟左右。 |
| 3. | 60 to 120 orchard trees can be serviced by one operator per hour .
每人每小时可采收60120株树。 |
| 4. | The optimum density is difficult to specify in terms of trees per acre .
很难定论究竟每英亩多少株树为最适密度。 |
| 5. | The flower structure in one tree was different, enforcing cleistogamy .
同一株树上的花结构不同，因而闭花受精是强制实现的。 |
| 6. | The rooted fascicles usually fail to produce a bud which can grow into a new tree .
生根的针叶束往往不能产生芽而进一步长成一株树。 |
| 7. | The great fire reduced the forest to a few trees
这场大火把这片树林烧得只剩下几株树。 |
| 8. | 60 to 120 orchard trees can be serviced by one operator per hour
每人每小时可采收60 120株树。 |
| 9. | Twice a year , large teams of women plant thousands of trees
每年有两次，大批大批的妇女栽种成千上万株树。 |
| 10. | It takes 17 trees and 1 , 500 litres of oil to produce one tonne of paper
制造一公吨纸需要用十七株树和1 , 500升燃油。 |
