YOU SAID:
two birds and one stone.
INTO JAPANESE
二羽の鳥と一石。
BACK INTO ENGLISH
Two birds and one stone.
INTO JAPANESE
二鳥一石。
BACK INTO ENGLISH
Two birds kill one stone.
INTO JAPANESE
二羽の鳥は一石を殺す。
BACK INTO ENGLISH
Two birds kill one stone.
That didn't even make that much sense in English.