methiuron

例句：

1. 1. The amino acid methionine is important for the growth of bacteria.
   氨基酸甲硫氨酸对细菌的生长很重要。
2. 2. Methionine is a precursor to sulfur-containing compounds in proteins.
   甲硫氨酸是蛋白质中含硫化合物的前体。
3. 3. The methionine content in this protein is higher than that in other proteins.
   这种蛋白质的甲硫氨酸含量比其他蛋白质高。