Food must be moist in order to have a taste.
A、appetizing(delicious)C
暂无解析
Thecontrolsofmostmodernairplanescanbeoperatedeithermanuallyorautomatically.
In1861itseemedinevitablethattheSouthernstateswouldbreakawayfromtheUnion.
Solid geometry has enabled astronomers to calculate the positions of the heavenly bodies relative to one another.
The controls of most modern airplanes can be operated either manually or automatically.
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.