むろん、舟は何百艘も水面を動きまわっているが、どれでもいいというわけにはいかない。

tbd

Of course there were several hundred boats moving around on the water but not just any old one would do.

数艘のヨットが、はるか沖合を並んで航行していた。

tbd

數艘游艇在遠方的海洋並列航行。

Several yachts were sailing side by side far out at sea.

湖の上に幾艘かのボートがあった。

tbd

There were some boats on the lake.

これらの人々が３艘の船で彼の国へやってきました。

tbd

These men had come to his country in three ships.