...trekking through the jungles...徒步穿过丛林She can't come pony trekking after all because she's in a delicate condition.她结果还是不能坐小马车旅行,因为她已怀孕.This year we're going trekking in Nepal.今年我们准备去尼泊尔远足。When we think ...
A few sentences regarding preignition and detonation may be helpful.再说几句有关早燃和爆燃的问题,或许是有益处的.The nitroalkanol imparts improved sensitivity and detonation velocities.硝化烷醇提高了感度和爆速.Given sufficient turbulence in the combustio...