apoapsis

apoapsis的音标为[ə"pəʊəpsɪs]，基本翻译为“远地点”。

速记技巧：可以将单词分解为ap-o-ap-sis，其中ap可以联想到approach，o可以联想到object，这样记忆有助于快速拼写和发音。

apoapsis这个词的词源可以追溯到希腊语，它由apo-（离开）和-apsis（门、孔）组成，意味着“离开门、孔”。这个词通常用来指卫星或行星轨道上的最远点，也就是卫星或行星绕行星或星体运行的最靠近母星的一端。

变化形式：复数形式是apoapsa，过去式是apoapisaed或apoapisaed，现在分词是apoapising。

相关单词：

apogee：远地点，指的是卫星或行星绕行星运行轨道上的最远点。

perigee：近地点，指的是卫星或行星绕行星运行轨道上的最近点。

periapsis：近门点，指的是行星或卫星接近目标天体（如行星或行星的卫星）的特定点。

prograde：逆时针方向，与行星运动方向相反的方向。

retrograde：顺时针方向，与行星运动方向相同的方向。

deferent：等速的，指的是在天文观测中，天体运动的速度相对于观察者的恒定的速度。

deferential：等速系统的，与deferent相关的属性或系统。

parallax：视差，由于观察者与目标天体之间的相对位置不同而产生的视差。

trigonometry：三角学，一门研究角度、边和三角函数的学科，与apoapsis相关的几何和三角学概念。

epicycle：本轮，在天文学中，用来表示一个圆形的轨迹，通常用于描述行星或卫星的运动。这个词也涉及到古代的天文学理论和方法。

常用短语：

1. apogee (远地点)

2. perigee (近地点)

3. apollo (阿波罗计划)

4. periapsis (近心点)

5. apoapsis (远心点)

6. gravity assist (引力辅助)

7. solar eclipse (日食)

双语例句：

1. The spacecraft reached its apogee and began its journey back to Earth.

2. The perigee of the moon"s orbit is visible from the ground.

3. The spacecraft used a gravity assist maneuver to change its trajectory.

4. The solar eclipse was a remarkable sight to behold.

5. The apollo missions brought back valuable samples of lunar rock.

6. The periapsis of the satellite is where it passes closest to the Earth"s surface.

7. The apoapsis of the orbit determines how long it takes for the object to complete one full revolution.

英文小作文：

Title: The Magic of Spaceflight

Spaceflight is a magical experience that brings us closer to the vastness of the universe and the wonders of space exploration. From the apogee, where we see the farthest reaches of the cosmos, to the perigee, where we witness the beauty of our planet"s orbit, spaceflight is a journey that leaves us in awe of the universe"s vastness and beauty.

The apollo missions, which brought back precious samples of lunar rock, marked a pivotal moment in human history when we left our planet"s orbit and ventured into the unknown expanse of space. Today, we continue to explore the depths of space with satellites and probes that explore distant planets, moons, and asteroids, opening our eyes to new frontiers and revealing the secrets of the universe.

Gravity assists, eclipses, and periapsis are just some of the wonders that spaceflight brings us, allowing us to witness events that would otherwise be impossible from our planet"s surface. From these experiences, we gain a deeper understanding of our place in the universe and gain inspiration to continue exploring and pushing the boundaries of what we can do in space. Spaceflight is a journey that leaves us in awe of the universe"s vastness and beauty, and it is a journey that we must continue to take, for the sake of discovery and exploration.