Conjunctivitis is a common and uncomfortable eye condition that can be caused by infections, allergies or irritants. The conjunctiva is thin clear tissue covering the front of the eye. One or both eyes may be affected, and the condition can spread from one to the other.
I'm assuming that by America you mean The United States. There's no country called America. Even when excluding Taiwan and other disputed territories, China is larger than the United States, both in terms of land area, and in terms of land area including inland waterbodies. By land area only: China: 9,326,410 sq km. United States: 9,161,966 sq km, 1.8% smaller than China.
Two-way trade between China and the United States has grown from $33 billion in 1992 to over $659 billion in goods in 2013. China is currently the third largest export market for U.S. goods (after Canada and Mexico), and the United States is Chinaâs largest export market. The stock of U.S. foreign direct investment (FDI) in China was $65.8 billion in 2014, up from $54 billion in 2012, and remained primarily in the manufacturing sector.