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1·Tax fossil fuels high enough and they will fall out of use.

对化石燃料征以足够高的税收，这将导致人们不再使用化石燃料。

2·The utility model is convenient in use, the erasing head doesn't fall out easily, and the liquid in the bottle can not overflow because of external pressure extrusion, collision or inverted placement.

该产品的优点为使用简便，擦头不易脱落，容器内液体不会受外力挤压或碰撞或倒置而溢出。