eastern elongation

基本解釋

The eastern edge of Willow River seem to elongation, and fluttered in the breeze.
東麪緣河兩岸的楊柳似乎也伸長(zhǎng)了，迎風(fēng)招展。
Don't tarry when looking for Mercury. Even at its greatest eastern elongation, Mercury sets less than 1.5 hours after the sun tonight.
在尋找水星的時(shí)候，無(wú)須駐足等候。即便処在東大距，日落之後不到1個(gè)半小時(shí)，水星便下沉了。
At greatest eastern elongation, Mercury swings farthest east of the sun, and briefly appears as an evening "star" after sunset.
這是水星是最大程度的在太陽(yáng)東部的延伸，這是今晚日落後最簡(jiǎn)短的一次顯示。