他右眼视力有损伤。He has a visual impairment in the right eye.英国有170万失明和视力受损人口。There are 1.7 million blind and visually impaired people in Britain.他的视力还算可以，还能看书。He can see tolerably well and he can read....
Verification or falsification alone is not enough to demarcate science.单凭证实或证伪都不足以为科学划界.Demarcate port is received, the user needs identity test and verify.限定端口接入, 用户需身份验证.A special UN commission was formed to demarcate ...
A monument was set up as a memorial to the dead soldiers.为阵亡将士立了一个纪念碑。This monument has been erected in commemoration of the victory over the enemy.这纪念碑是为纪念战胜敌军而建立的。The whole house is a monument to her craftsmanship.那整座房...