例句與造句

1. By surveying the present situation of natural rehabilitation and manmade reconstruction about the several highway rocky slope around guiyang , highway rocky slope indicates vegetation can be recovery naturally , but the recovering velocities are greatly different because the influence factors are complicated ; the protecting measures for manmade ecosystem can create good ecosystem landscapes in short time , but it can ' t resist natural disasters
   摘要對(duì)貴陽市附近數(shù)段道路巖質(zhì)邊坡植被自然恢復(fù)和人工修復(fù)的現(xiàn)狀調(diào)查，路塹巖質(zhì)邊坡坡面植被可自然恢復(fù)，因影響因素復(fù)雜，其恢復(fù)速率差別較大；巖質(zhì)邊坡坡面人工生態(tài)保護(hù)措施短期內(nèi)生態(tài)景觀良好，但不能抵御自然災(zāi)害。
2. It's difficult to find manmade ecosystem in a sentence. 用manmade ecosystem造句挺難的