苗木

If a brush won't remove build-up, use a sharp single-edged razor blade to gently remove the dirt from the glass.

如果刷子不能清除玻璃上的污垢的话，就用比较锋利的刀片轻轻的刮除。

Walk to the west of your circle, tracing the line of white.

步行到西，你的圈子，追查线白色。