Hardtack
01
ハードタック, 船のビスケット
a type of hard, dry biscuit or cracker that is made from flour, water, and salt, and was historically used as a long-lasting food source for soldiers and sailors
02
山のマホガニー, 硬い山の木
a mountain mahogany
語彙ツリー
hardtack
hard
tack



























