YOU SAID:

a fly in the pond must master his work

INTO JAPANESE

池でのハエは彼の仕事をマスターしなければなりません

BACK INTO ENGLISH

Flies in the pond must master his work

INTO JAPANESE

池でハエは彼の仕事を習得する必要があります

BACK INTO ENGLISH

In the pond the fly needs to master his work

INTO JAPANESE

池ではハエは彼の仕事をマスターする必要があります

BACK INTO ENGLISH

In the pond the fly needs to master his work