Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
長方形 ちょうほうけい rectangle, oblongmath
海域 かいいき area of oceanmix
採る とる (1)to adopt (measure, proposal), (2)to pick (e.g. fruit), to catch (e.g. insects), to take (e.g. a sample), (3)to assume (attitude), (4)to take on (i.e. hire), to engage godan, verb, vtrans
繊維 せんい fibre, fiber, textilemix
不等 ふとう disparity, inequalitymix