動(dòng)詞 synthesize:

1. combine so as to form a more complex, product
   同義詞：synthesise
2. combine and form a synthesis

1. Being a substance that is required for normal functioning but does not need to be included in the diet because of the body's ability to synthesize it from other nutrients.
   (氨基酸)非必需的是正常的運(yùn)轉(zhuǎn)所需要的物質(zhì)的，但因?yàn)闄C(jī)體有從其它營(yíng)養(yǎng)成分合成它的能力，因此不需要被包括在日常的食物中的
2. The two elements are synthesized by a chemical process.
   這兩種元素已經(jīng)化學(xué)合成。