She prefaced her talk with an apology / by apologizing for being late.她先为迟到表示歉意,然后开始讲话.He prefaced his remarks with a smile.他用微笑来开始他的评论.The president prefaced his remarks by saying he has supported unemployment benefits ...
The earth-moving trucks and cement mixers lay idle.运土卡车和混凝土搅拌机闲置着。Generators, cement - mixers, air compressors shook the ground.发电机 、 混凝土搅拌机和空气压缩机的吼声,震荡山谷.Separation is obtained by means of a series of mixers and settler...
"White noise" was played into the subject's ears through headphones.让受试者通过耳机听“白噪声”。One hundred and forty quid for a pair of headphones, you've got to be joking!一副耳机140英镑，你不是在开玩笑吧！I refused to wear headphones be...