(gambling, idiomatic) Snake eyes: two ones, after rolling two dice. / (derogatory, idiomatic) Wearing two layers of hitoemono (unlined summer-weight kimono).

(gambling, idiomatic) doubles: two of the same number other than 1, after rolling two dice / (gambling, idiomatic) in a forecast bet, betting that the same horse wins twice in a row

ロシア人: a Russian person, Russian people

路上: on the road

露国: (dated) Russia

濾波器: filter

本論: body (of a discourse)

言論: speech (as in freedom of speech)

露営: camping out

露営: to camp out