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1.initiative n.主动性；主动精神；倡议
He proposed a new diplomatic initiative to try to stop the war.
他提出了一项新的外交计划以尽力阻止这场战争。
2.simultaneously adv.同时地；一壁；一齐
The two guns fired almost simultaneously.
两支枪几乎同时开火。
3.boost vt.促进，提高
Do what you can to give her confidence and boost her morale.
尽你所能让她树立信心，提高士气。
4.unsure adj.不确定的
Scientists are becoming increasingly unsure of the validity of this technique.
科学家们越来越拿不准这一技术是否正当合法。
5.continually adv.不停地；持续地
Japanese camera makers continually introduce whizzy new electronic models.
日本的相机制造商不断推出最新的电子模型。
6.essential adj.基本的；必要的
Party membership was an essential prerequisite of a successful career.
成为党员是事业有成必不可少的先决条件。
