The role of small, frequent fires in clearing out the undergrowth so that larger, tree-destroying ones will not eventually take hold is now understood.
零星、频繁的火灾清空了下层灌木丛以使得更大的、会毁坏树木的灌木不会壮大，它的这个角色已经被认识到了。
There, in the center of the clearing, stood a wonderful tree, the like of which they had never seen.
那边，一棵神奇的树站在空地中间，那是他们从未见过的一种树。
Clearing site sometimes can involves removing trees and tree stumps and disposing of the debris.
清理场地有时包括移树、树桩和处理碎屑。
Clearing site sometimes can involves removing trees and tree stumps and disposing of the debris.
清理场地有时包括移树、树桩和处理碎屑。
应用推荐