ˌbarrier to ˈentry ( barriers to entry) ( ˈentry ˌbarrier)
noun
[] () something that makes it difficult for a company to start competing in a particular kind of business, for example high cost or advanced technology进入（市场）壁垒（指一家公司进入某特定市场遇到的障碍，如高成本或先进技术）◆E-commerce is an industry with relatively low barriers to entry (= it is simple and cheap to start doing it).电子商务是进入壁垒相对低的产业。