YOU SAID:
By the age of 17 he was working as an assistant in a pharmacist’s shop, and was hired as a plague doctor by the age of 22 when counts of deaths were on the rise.
INTO JAPANESE
17 の年齢によって彼は薬剤師の店で助手として働いていた、死者の数が増加するとき、22 歳でペスト博士として雇われました。
BACK INTO ENGLISH
If by the age of 17 he increases the number of deaths in the apothecary shop was working as an Assistant in a 22-year-old was hired as the plague doctor.
INTO JAPANESE
17 の年齢によって彼は増加する場合調剤薬局の死の数はペストの医者として雇われた 22 歳のアシスタントとして働いていた。
You should move to Japan!