英文文章解釋

解釋下面這幾段文字(中文解釋}:
Professor Douglas closed the dive-sub door.We fastened our seat belts.
Although the sun was shining( )the water soon became dark as the dive-sub
wentdeeper.Beautiful coloured fish swam quickly away from the dive-sub's
bright lights.We also saw a couple of sharks.I even saw an octopus!Although
it was a long way to the bottom,I was never bored.
Peekaboo is unbelievable.It is ilke a museum.The houses are still there,
just as they were 200 years ago.The dive-sub travelled along a road.Sea plants
grew in the old farms.Strange creatures lived in the buildings.The only noise
were the engine and the click of my camera.
We were travelling over a bridge when I saw a shape.It was something big;
bigger than a shark.I shouted.The professor put a finger to his lips.I heard a
banging on the dive-sub door.I felt afraid,very afraid...
( )=?=i don't no,you help me.thank you