如果你在考试中保持冷静,就会考出好成绩．（keep）
If you in the exam, you will get good grades．
熬夜是一个坏习惯．（stay）
is a bad habit．
"少年强,则国强．"因此,我们应该努力学习以便能为社会作出贡献．（contribution）
"The stronger we youth are, the more powerful our country will be．" Therefore, we students should try our best to study so that we can the society．
为了学习新的种植技术,一些农民正在和袁隆平聊天．（chat）
There are Yuan Longping to learn some new planting skills．
怀特夫人下班后匆匆离开了办公室,因为那天是她女儿九岁的生日．（hurry）
Mrs．White left the office after work, for it was her daughter's ninth birthday that day．