He is vacuuming a rug in the sitting room.他在起居室里用吸尘器打扫地毯.L am vacuuming the floor now and have several shirts to iron.我正在用真空吸尘器清理地板,还有好几件衬衫要熨.But a wide - open floor adds only a few seconds the vacuuming chore.但是,广泛的开放式购...
We wish you both health and longevity.我们祝愿您二位健康长寿。Human longevity runs in families.人类的长寿具有家族遗传性。Their potential longevity was 4 - 8 years.他们的生命力是4-8年....
In many instances isocyanates react vigorously with water, alcohols, and amines.在许多情况下异氰酸酯同水, 醇和胺发生猛烈的反应.Both the alcohols and aldehydes are secondary products of the oxidation.醇和醛两者为氧化的次级产物.An alternative approach to al...
他正试图追求一位密苏里的豪门小姐.He was trying to woo the daughter of a Missouri aris - tocrat.密苏里河是密西西比河的主要支流.The Missouri River is the chief tributary of the Mississippi.马克·吐温在密苏里编辑了一种报纸.Mark Twain edited a newspaper in Missouri....