英语翻译Population experts predict that if world population cont
英语翻译
Population experts predict that if world population continues to grow at the present rate,mankind will soon face a severe challenge to ___ itself in prosperity and peace
A.retain B.maintain C.sustain D.obtain
Population experts predict that if world population continues to grow at the present rate,mankind will soon face a severe challenge to ___ itself in prosperity and peace
A.retain B.maintain C.sustain D.obtain
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