您好,很高兴为您解答:a massive oak claims its ground for 299 years or more,outcompeting all other would-be canopy trees by casting a dense shade and drawing up any free water in the soil一颗巨大的橡树占据那块场地长达299年乃至更久,以其浓密的树荫及能吸干土壤中的所有游离水而胜出其他所谓的林木树。claims 谓语 “声称,认领”outcompeting.... “胜出”现在分词作伴随状语drawing up “吸收” 和 casting 同为方式状语free water“自由水,游离水”-------------------------------★倾心解答★愿您满意★★欢迎追问★敬请采纳★-------------------------------