They got out the chessboard and arranged the pieces.他们拿出棋盘把棋子摆好.He turned back to the chessboard and picked up the white knight again.他又回到棋盘上,拣起白色的相.The soil was squared off like a gigantic chessboard.土地象大棋盘一样被分成方块....a ...
John Pennel became the first person to pole-vault 17 ft., at a meet in Miami, Florida.约翰·佩内尔在佛罗里达迈阿密的一次运动会上成为撑竿越过17英尺的第一人。The main stem will extend to around 12ft, if left to develop naturally...如果任其自然生长,主干可以长到约12英尺。The ...
During baking, bromates are completely reduced to bromides with no bromination of flour constituents.在焙烤过程中, 不用通过面粉各组分的溴化作用,溴酸盐也会全部彻底地还原成溴化物.Methyl cis - cinnamate was synthesized from ethyl trans - cinnamate by brominat...