have limits短语⁷⁷¹⁷¹ 基本例句 有没有限度 At the same time, she knows that even great opportunities have limits. 同时她也知道这些受教育的机会并非全是好事。 tianya Both of them provide important information of aging from different perspectives, but they have limits to explain the aging. 这两大研究领域从不同侧面揭示了衰老的起因，提供了机体衰老的重要信息，但也都存在各自的局限。 pp.lunwenchina.net.cn