1·These trees provide the raw material for high-quality paper.
这些树是制造优质纸张的原料。
—— 《牛津词典》
2·People had to burn these trees to keep warm during harsh winters.
在寒冷的冬天，人们得靠烧这些树保暖。
—— 《柯林斯英汉双解大词典》
3·These trees are machine planted.
这些树是用机器种植的。
4·These trees fruit annually.
这些树每年结果子。
—— 《新英汉大辞典》
5·These trees come into leaf in February.
这些树二月里长叶子。
—— 《新英汉大辞典》
6·These trees had suffered water shortage.
这些树很缺水。
7·What a pleasant shade these trees give us!
这些树底下多么荫凉舒服呀！
—— 《新英汉大辞典》
8·These trees had suffered the greatest water shortage.
这些树经受了最严重的缺水。
9·Why are there plants and flowers growing on the trunks of these trees?
为什么这些树的树干上长着花草呢?
10·Do these trees have other means at their disposal to prevent overexposure to light in autumn?
有没有其他方法来防止这些树在秋天过度暴露在阳光下？