Objective: To prepare and observe sunscreen effect against ultraviolet ray of the sunscreen Cream.
目的：研制防晒霜乳膏，观察该乳膏对紫外线的防护效果。
Frankly and definitely there is danger ahead — danger against which we must prepare.
老实说，肯定是前面有危险——危险对我们必须做好准备。
Prepare for breathing against the impact untill the plane stop completely.
做好防冲击姿势，直到飞机停稳。
Prepare for breathing against the impact untill the plane stop completely.
做好防冲击姿势，直到飞机停稳。
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