YOU SAID:
you look like you've just swam ten kilometres
INTO JAPANESE
あなたはたった10キロ泳いだように見えます
BACK INTO ENGLISH
It looks like you have only swam 10 kilometers
INTO JAPANESE
10キロ泳いだだけのようです
BACK INTO ENGLISH
It seems to have just swung 10 kilometers
INTO JAPANESE
ちょうど10キロメートル揺れたようです
BACK INTO ENGLISH
It seems to have just shaken 10 kilometers
INTO JAPANESE
ちょうど10キロ揺れたようです
BACK INTO ENGLISH
It seems to have just shaken 10 kilometers
That didn't even make that much sense in English.