英漢例句雙語例句Knowing a site is using either one of these will help weed out sites that may not be beneficial to you !明知是一幅用一方土地，這將有助于淘汰未必有利你！Soil weed seed bank is the primary source of future weed infestations and knowledge of seed bank dynamics is beneficial to integrated weed management.土壤雜草種子庫是草坪雜草發(fā)生危害的主要根源，種子庫的動態(tài)變化規(guī)律對于雜草的綜合管理具有非常重要的意義。beneficial weed更多例句