When Hofmann made some passing comments about the desirability of a syntheticsubstitute for quinine, it was unsurprising that his star pupil was moved to take up the challenge.
当霍夫曼对奎宁的合成替代物的可取性发表完一些简短的评论后，他的得意门生接受挑战也就不足为奇了。
2
Baekeland recognized a killer ap when he saw one. If only he could come up with a syntheticsubstitute for shellac.
贝克兰独具慧眼，他迫切希望找到紫胶的合成替代物。
3
Monica's finds a new job creating Thanksgiving recipes for Mockolate, a synthetic chocolate substitute.