别光是为了想得开心。惯例巡航而已: It is an area that requires constant bottom contour mapping. You can hit an uncharted underwater mountain down there. "That's why the countries in that region,
-the_dumb_one(粉红撩死人);
2021-10-9{63}(#14030628@0)+2
the US and China are constantly surveying and patrolling them."