One afternoon I watch firefighters practice underwater rescues there. They emerge shining like seals in their wet suits and talking of a leviathan.

某天下午我在这里观看了消防人员练习水下营救。

youdao

In summary, I do feel it is good practice for boys to know what their testicles normally feel like and recommend annual checkups so the doctor can examine the testicles as well.

CNN: Should teen boys check testicles regularly?