Let OC be the bisector of angle AOB.OC为AOB的角平分线.A perpendicular bisector of a chord passes through the centre and bisects the arc.弦的垂直平分线经过圆心,并且平分弦所对的两条弧.the angular bisector角平分线The article discusses the determination an...
He always carried leather briefcase under his arm , and a knobby walling - stick in his hand.他永远挟着他的公文皮包.并且永远带着他那根老粗老粗的黑油油的手杖." You are bringing bad news or something , walling into someone's room without a word? "报...
workmen with picks and shovels手拿镐铲的工人The car picks up speed with just a touch of the accelerator.这辆车只要你一触加速器就会加速.That vamp picks up new guys every weekend.那荡妇每周末都钓不同的男人....