预防: prevent; take precautions against; guard against 短语和例子贯彻以预防为主的医疗方针 carry out the policy of putting prevention first in medical work; 采取特殊的预防措施 take special precautions; 预防疾病蔓延 prevent a di
内战对发展的影响特设专家组会议: hoc expert groumeeting on the development implications of civil conflict