Double Eagle in the first transatlantic balloon, was greeted by avid crowds in France.

Communication is one of the most important bonds that hold cultural systems together.

Formerly , in the United States, many nurses worked as private duty nurses rather than in hospitals.

Someseaurchins海胆havevenomous(toxin)spines

In calculating the daily calorie requirements for an individual, variations in body size, physical activity, and age should be taken into account.