Draw the floss backwards and forwards between the teeth.将牙线在齿间来回拉动。He controlled the car until it was pointing forwards again.他稳住车子，直到它又朝前开去。He stood a few moments, rocking back and forwards on his heels.他站了一会儿，踮着脚跟前后摇晃。...

n.硅灰石...

The results were: 1. Formononetin was separated by optimized chromatography method with silica gel column . 2.结果如下: 1. 优化硅胶层析柱法,从红车轴草中分离出刺芒柄花素....

have a strong arm for的音标：have a strong arm for的英式发音音标为：[hæv ə strɒŋ ɑ:m fɔ:]have a strong arm for的美式发音音标为：[hæv e strɔŋ ɑrm fɔr]...

affording的音标：...

amebiform的音标：amebiform的英式发音音标为：[əmbɪ'fɔ:m]amebiform的美式发音音标为：[əmbɪ'fɔm]...

n.预（抽）真空...

forensics的音标：forensics的英式发音音标为：[fə'rensɪks]forensics的美式发音音标为：[fə'rensɪks]...

He stuffed the chicken with Frankfort meat.他用灌香肠的碎肉给鸡填馅.Peace was signed at Frankfort surrendering the provinces of Alsace and Lorraine to the Germans.和平协议在法兰克福签署,阿尔萨斯和洛林.拱手让给德国.I want to make a reservation to Frankfort ...

Californian的音标：...

n.等英尺-烛光线...

for a while的音标：for a while的英式发音音标为：[fɔ: ə hwail]for a while的美式发音音标为：[fɔr e hwaɪl]...

foolish的音标：foolish的英式发音音标为：['fu:lɪʃ]foolish的美式发音音标为：['fulɪʃ]...

Foreboding mingled with his excitement.他在兴奋的同时又夹杂着一种不祥的预感。Prisons like Strangeways, built more than 100 years ago, were intended to look grim and foreboding places.诸如斯特兰奇韦斯监狱之类建于 100 多年前的监狱故意营造出一种阴森、不祥的气氛。I felt a gloomy...

footwall的音标：footwall的英式发音音标为：['fʊtwɔ:l]footwall的美式发音音标为：['fʊtˌwɔl]...

安全装置...

adv.免费...

chloroform的音标：chloroform的英式发音音标为：['klɒrəfɔ:m]chloroform的美式发音音标为：['klɔrəfɔrm]...

adj.脚跟稳的...

adj.脚趾间有蹼的，蹼足的，步兵的...

forepaw的音标：forepaw的英式发音音标为：['fɔ:pɔ:]forepaw的美式发音音标为：['foʊrˌpɔ]...

come before的音标：come before的英式发音音标为：[kʌm bi'fɔ:]come before的美式发音音标为：[kʌm bɪ'fɔr]...

Twyford的音标：...

junk food的复数形式为：junk foods...

To forestall is better than to amend.与其补救于已然,不如防范于未然.Try to anticipate what your child will do and forestall problems.尽量预见你的孩子会干什么，并预先阻止问题发生。Large numbers of police were in the square to forestall any demonstrations.广场上驻...

宏观预测，总体预测...

She began folding up her embroidery.她开始将她的刺绣品折叠起来.A folding mechanism plaits the fabric onto the roller bed.织物经一段自由布段后从汽封口进入蒸箱,并被迅速加热到反应温度.Direct current and below they are brandishing buoyantly folding fan, thought boun...

pour forth的音标：pour forth的英式发音音标为：[pɔ: fɔ:θ]pour forth的美式发音音标为：[pɔr fɔrθ]...

前导轮架...

Defoe skilfully narrated the adventures of Robinson Crusoe on his desert island.笛福生动地叙述了鲁滨逊·克鲁索在荒岛上的冒险故事.Defoe vividly narrated the adventures of Robinson Crusoe on his desert island.笛福生动地叙述了鲁浜逊克鲁索在荒岛上的冒险故事.Robinson Crus...