weight gain perpetrated by New Year celebrations

cautious driving

want someone to do something like ~ / want something to be like ~

A gentleman encompasses all and remains impartial. A petty mind is partial and does not encompass all. That is, a gentleman shows kindness to all with fairness, but a petty person is only kind to a few friends.

ソビエト社会主義共和国連邦: the Union of Soviet Socialist Republics

平行四辺形, 平行4辺形: a parallelogram

輸入業者: importer, import merchant (trader); importing firm

feelings for a departed one grow weaker over time; out of sight, out of mind

ご馳走様でした: it was delicious (a stock phrase required by the Japanese etiquette, lit.: it was a feast)

犯罪心理学: (criminology, psychology) criminal psychology, that is the study of the criminal mind