英语翻译87.Medical researchers are painfully aware that there ar
英语翻译
87.Medical researchers are painfully aware that there are many problems _____ （他们至今还没有答案）to which they have no answer until now.
89.You’d better take a sweater with you _______（以防天气变冷）
In case the weather turns cold
90.Throught the project,many people have received training and ______（决定自己创业）
decide to establish their own career
91.the anti-virus agent was not known ______（直到一名医生偶然发现了它）
until a doctor accidentally found it
87.Medical researchers are painfully aware that there are many problems _____ （他们至今还没有答案）to which they have no answer until now.
89.You’d better take a sweater with you _______（以防天气变冷）
In case the weather turns cold
90.Throught the project,many people have received training and ______（决定自己创业）
decide to establish their own career
91.the anti-virus agent was not known ______（直到一名医生偶然发现了它）
until a doctor accidentally found it
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