在中国历法中，春分总是出现在2月。In the Chinese calendar, the Spring Equinox always occurs in the second month.这种月对历法的影响一直延续到我们当今时代.This lunar influence upon the calendar reaches down to our own days.早期天文学的用途之一是建立历法.One use for early as...
Airliners would be jetting through the sky at 500 miles an hour.大客机会以每小时500英里的速度穿越太空.They placed very stable and accurate atomic clocks on regularly scheduled jet airliners.他们将非常稳定、准确的原子钟装在定期飞行的喷气式班机上.The fog grounded th...
下棋的走法不但多种多样, 而且错综复杂.The moves in chess are not only manifold, but involute.你们下棋的瘾头可真不小.You are really keen on playing chess.他把下棋的初步知识教给儿子.He initiated his son into the game of chess....