1. The trend of prices is still upwards.
    物价仍有上涨趋势.

2. The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.
    沿船体的上升的气流和沿航线向前的气流给这种巨翼大鸟以足够的浮力和推力。

3. A tree grows upwards.
    树是向上长的。