source: [lemma=but] [lemma=□] □
destination: [lemma=but] [lemma=chinese] □
spec: An estimated 60 % of all spam is sent through standard computers that have been infected by backdoor Trojans , and can then controlled by hackers . But Chinese newspapers in China presented the Tibetan masses [ as being ] very happy at the Dalai Lama 's visit to China . Until confronted by Western imperialism , China might have faced military conquests , but Chinese civilization had never been under attack . Perrault and Francois , having cleaned out their part of the camp , hurried to save their sled-dogs . '' The polio vaccine , computers , jet propulsion , and disease-resistant grains and vegetables are some of the thousands of advances pioneered at our universities that have had dramatic benefits for our health , economy , security , and quality of life , `` the letter said .