current, this, the matter in question / original, actual, base

book / this / main / real / actual / true

see you later (said by a person staying, a stock phrase required by the Japanese etiquette, lit.: (after) going, come back)

行っていらっしゃい: alternative form of いってらっしゃい (itterasshai)

Chinese (any language spoken in China) / Chinese (class of languages) / Chinese (Mandarin)

the Chūgoku region (western part of Honshu comprising the prefectures of Okayama, Hiroshima, Yamaguchi, Tottori, and Shimane)

China Standard Time

sinicization

(humanities) sinology

China, as opposed to Japan and other islands / mainland China