optimistic estimate meaning in English

乐观估计

This illustrates how violent the competition of shipping market is , on the other hand elucidates the shipping business enterprises are very dissatisfied with their own operation condition . when we optimistic estimate many beneficial factors to the development of container shipping after entry to wto , more important , we should see the coming threat and challenge from the international shipping market
我国的航运市场早已对外开放，而且现在又已迈入了wto的门槛，虽然这为集装箱运输的发展来说提供了诸多有利因素，但当我们乐观地估计未来的集装箱运输在wto后将有大的发展的同时，更重要的是应该看到我国航运市场进一步开放对我国集装箱运输业的威胁和挑战。