Vocabulary

Sakurajima daikon (the largest variety of radish in the world)

southern flying squirrel (Glaucomys volans)

Pteromys volans orii (subspecies of the Siberian flying squirrel, endemic to Hokkaido)

Siberian flying squirrel (Pteromys volans)

northern flying squirrel (Glaucomys sabrinus)

sugar glider (species of flying phalanger, Petaurus breviceps)

hamachi; young Japanese amberjack; young yellowtail

crew-cut (type of haircut)

crew neck (sweater)

Klingon (fictitious language)

tax haven

tennis shoes

tennis player

octopus

if you are prepared you don't have to worry; it's good to have a shelter against every storm

arbitrage

stock loan; lending stock

denominated in euros

denominated in Chinese yuan; denominated in renminbi

(underwater) depth gauge

dive computer

submersible pressure gauge (diving); SPG

table of mathematical decompression and oxygen toxicity models for divers

dive computer

souvenir shop

person who gets lonely easily; person who does not like to be alone; person who craves company

digital pen

to do or not to do

ought to (verb); should (verb)

whether one does or does not

principal cause

foot pocket portion of a diving fin

diving boots (usually made of neoprene)

full foot type scuba fin

diving style

no more than that; with that; on that note; altogether

mask squeeze; unequal pressure between the mask air space and the vascular pressure within the blood vessels of the face

by all means; no matter what; at any rate

in contrast to (one's, its) appearance

won't you