You will know the result if you add up all the numbers. 你把所有的数加起来就会知道结果。 calm down 使平静下来，镇定下来 Calm down and don't panic. 冷静下来，不要焦躁不安。

be concerned about 关心，挂念，担忧 Lucy is very concerned about the natural environment. 露西很关心自然环境。 a series of 一连串的，一系列，一套 Life is a series of test. 人生就是一连串的考验。 on purpose 故意 He said nothing on purpose. 他故意什么都没说。

in order to 为了… In order to improve my English, I take part in English corner frequently. 为了提高英语水平，我经常参加英语角。

face to face 面对面地 In order to get rid of generation gap, you should communicate with your parents face to face. 为了消除代沟，应该和父母面对面。

no longer/not…any longer 不再…. The phenomenon of lateness no longer exists in our class. 班级里不再有迟到的现象了。

suffer from 遭受；患病 Lots of teenagers suffer from short sight. 很多青少年都患上了近视眼。 get/be tired of 对…厌烦 Lucy is never tired of helping people in trouble. 露西从不厌倦帮助别人。

望采纳

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