年轻的先生, 这种强壮剂古人是不知道的.This corroborative, young sir, was unknown to the ancients.也是一种强壮剂,使人迅速恢复体力.It is also a strength agent for rapid restoration of physical strength....

“强壮剂”的英语可以翻译为：analeptic，corroborant，roborans，invigorator ...