从中提取的松香和鞣酸是化学工业上很需要的.The risin and tannin that can be extracted from it are sought by the chemical industry.从3点钟以后,它们就燃烧着松香.From three o'clock onward they would be burning resin.在实验室内用一 步法 合成了松香改性壬基酚醛树脂.Rosin modifi...
They just sponge from a source they view as an expert.他们刚刚从一处他们视为专家的出处诈取了信息.Fill a bowl with water and gently sponge your face and body.在一只盆里放上水，轻轻地用蘸湿的海绵擦拭你的面部及身体。He wiped off the table with a sponge.他用一块海绵擦桌子。" That�...
He inherited vast estates on his accession to the throne.他即位后继承了大片领地....unemployed teenagers from sink estates...来自贫困地区的无业青少年New housing estates have mushroomed on the edge of the town.城郊的新住宅楼发展得十分迅速.The two estates join...
Some Horseshoe bats can detect differences as slight as 0 . 0001 KHz.一些马蹄铁形蝙蝠能探测到细微至0.0001千赫的差别.An observant doctor can often detect depression from expression, posture, and movement.善于观察的医生常常能从人的表情、姿势以及动作诊察出抑郁症。Detect t...