gravitational attraction是什么意思

gravitational attraction的音标：...

If you treble the distance, the gravitational attraction gets nine times weaker.如将距离增大两倍, 则其万有引力就减小九分之八.Many asteroids are weakly bound piles of rubble, held together by their own minute gravitational attraction.大多数的小行星都...

He was found trying to flush banknotes down the toilet.他试图把钞票从马桶里冲走时被发现。Inflation and the shortage of banknotes has forced factories to pay their workers in kind.通货膨胀和纸币短缺使工厂不得不以实物抵付工人的工资。The desk had been rifled for mon...

“脉象仪”的英语可以翻译为：electropulsograph ...

n.简短的笔记，略记( jotting的名词复数 )，随感，杂记...

n.食管切开术...

Grandma can make snacks with banksia rose petals, which smells and tastes fragrant as the flower.奶奶会用木香花瓣做点心, 那点心的味道都带着花香!...

他们去了自行车棚的后面，短暂地拥吻了一下。They went for a quick snog behind the bike sheds.在唱完最近的畅销歌曲之后, 他们短暂地休息了一下.After they sang all the latest hits, they took a short break.我们就必须(至少短暂地)回顾它的开端.We must go back, briefly at least, to its beg...

cytotaxis的音标：cytotaxis的英式发音音标为：[sɪtəʊ'tæksɪs]cytotaxis的美式发音音标为：[sɪtoʊ'tæksɪs]...

Centaurus population is thinly spread across these colonies, now totalling approximately 5 billion human beings.半人马星座人稀疏地在这些殖民地扩展, 现在总数大约达到50亿人....

“指南”的拼音为：zhǐ nán...

Asteriidae的音标：...

reading room的音标：...

劳驾, 请加满不含铅的汽油,并检查一下机油.Excuse me, please fill it up with unleaded and check the oil.一种含铅的氯化物和钒酸盐的矿物,是钒的来源.A red , yellow, or brown mineral ore of vanadium and lead.请加满不含铅的汽油,并检查一下机油.A : Fill it up with unleaded and check ...

homed的音标：...

upbraid的一般过去时为：upbraided...

神经节糖苷...