Dilemma three. Enable l be a geodesic in the hyperbolic aircraft H2 and Enable p be a issue not on l. The distance from p to l is by definition the duration on the geodesic section pq which cuts l at 90。 (see figure). 与大部分喜欢走寻常路的中国人相比，欧美老外更喜欢不按常规出牌的写作方式。无论是开头结尾或行文构造，只要你能整出一个超乎寻常的点，绝对加分。 当我们确定了那些核心的概念之后... https://single-bookmark.com/story12527365/the-basic-principles-of-%E4%BB%A3%E5%86%99personal-statement