There are also organizations dedicated solely to yacht certifications, such as the International yacht Bureau (IYB).

也有专门致力于游艇认证组织，如国际游艇局(iyb)。

youdao

There are also organizations dedicated solely to yacht certifications, such as the International yacht Bureau (IYB).

也有专门致力于游艇认证组织，如国际游艇局(iyb)。

youdao