YOU SAID:
Today the Straits Are Merely Calm Once More
INTO JAPANESE
今日は海峡はもう一度穏やかになりました
BACK INTO ENGLISH
The strait has become calm again today
INTO JAPANESE
今日も海峡は穏やかになりました
BACK INTO ENGLISH
The strait has become calm today as well
INTO JAPANESE
今日も海峡は穏やかになっています
BACK INTO ENGLISH
The strait is still calm today
INTO JAPANESE
海峡は今日もまだ穏やかです
BACK INTO ENGLISH
The strait is still calm today
That didn't even make that much sense in English.