As luck would have it, I was out when he called.不巧得很, 他来访时我正好外出了.As luck would have it , he was away that day.他偏巧那天不在.As luck would have it, he had just left when I arrived.我到那儿, 不巧他刚走....
Chicken liver chromatin component DNA : RNA : histone: non - histone ratio is 1∶0.鸡肝染色质组成成分DNA∶RNA∶组蛋白∶非组蛋白的质量液度的比值为: 1∶0.The chromatin remodeling and histone acetylation were associated with transcription activation.真核基...
of course的近义词有：certainly, naturally, of course, surely。下面这些副词或词组均有"肯定地，当然"的含义：certainly：强调有把握，深信不疑。naturally：指自然而然，毫无造作或天生如此。of course：指毫无疑问，自然如此。可与certainly和naturally换用。surely：表一种必然的可能性，也可表示信心或不轻信。强调主观判断。...
关于肯尼迪家族性丑闻的新闻标题都让我读得腻烦了。I'm sick of reading headlines involving the Kennedys in sex scandals.肯尼迪在1960年总统大选中击败了尼克松.Kennedy edged out Nixon in the 1960 presidential election.肯尼迪被刺客的子弹击中而身亡.Kennedy was struck down by a...