Straight down
直直───straight;落落───Fall
Brett looked straight ahead.───布瑞特向前直视。
His teeth were perfectly straight.───他的牙齿非常整齐。
The signpost pointed straight ahead.───路标直指前方。
and the axial line of the cylindrical die and that of the output shafts of the power device are on the same straight line.───所述圆柱形模具的轴线与动力装置输出轴的轴线在同一条直线上。
He walked straight across the kitchen to an inner door, opened it, inclined his head forward, and stood listening.───他径自穿过厨房,走到里边一道门口,把门打开,探出头去,站在那儿听一会。
What should have been a straight line between two points, may now seem to be nothing but pot holes and detours.───两点之间本应是一条宽敞的直路,却充满了坑坑洼洼,令人不得不绕道而行。