氢气在工业上广泛用于制氨。Hydrogen is used extensively in industry for the production of ammonia.嗅氨使他恢复了意识.The smelling of ammonia brought himaround.丙氨酸在转氨作用中似乎是更好的氨基酸.Alanine appears to be the preferred amino acid in the transaminat...
Twelve extremely good-looking, smooth young men have been picked as finalists.12名特别漂亮精明的青年男子被选为参加决赛的选手。He was smart and well groomed but not good looking.他仪容整洁，穿戴漂亮，就是人长得不好看。His friend was less good-looking, but a lot mo...