“Synthetic” 是形容词，表示 “人造的，人工合成的”，非天然的。比如，制造业中使用的 “合成材料” 是 “synthetic material”；用于制造服装的尼龙就是 “synthetic fibres（合成纤维）” 的一种；“合成化学品” 是 “synthetic chemical”。

LOS ANGELES, July 21 (Xinhua) -- NASA and the Indian Space Research Organization (ISRO) have scheduled the launch of their joint Earth-observing mission for July 30, NASA announced Monday.

TIANJIN, July 16 (Xinhua) -- A Chinese research team has made a significant leap in the field of synthetic biology by precisely synthesizing and assembling large-scale human DNA and successfully ...