縦断:: running lengthwise / 銃弾:: bullet

重合体: polymer

The Taiwanese people - (from Taiwan) / a Taiwanese person

testing on a living person

acute triangle (triangle all of the angles of which are acute)

to visit Japan

visit to Japan, visiting Japan

white

unapplied, undecorated; also the object that is unapplied or undecorated / honest, serious; also the person who is honest or serious

white / undyed, unpainted, unseasoned, etc. / pure / innocent / normal, unspecial