Parallel lines converge at infinity.平行线永不相交.This eliminates reflections from infinity, as one expects physically.正如物理上所预期的,这就消除了来自无穷远处的反射.These permutations multiply towards infinity.这些排列可以增加到无穷大。It is shown that the pro...
I rode a hydrofoil ferry across the bay this morning.今天早上我驾驶快艇驶过海湾.Why can a hydrofoil move on a layer of air?为什么气垫船能靠后方的气流移动?The hydrofoil soon speeded up.那艘水翼船不久就增加速度....