(zài, ㄗㄞˋ) (located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress) [CE-DICT]
水
(すい) (n) (1) (abbr) (See 水曜日) Wednesday; (2) (See 氷水) shaved ice (served with flavored syrup); (3) (See 五行・1) water (fifth of the five elements) [EDICT]
(みず) (n) (1) (See 湯・ゆ・1) water (esp. cool, fresh water, e.g. drinking water); (2) fluid (esp. in an animal tissue); liquid; (3) flood; floodwaters; (4) (See 力水) water offered to sumo wrestlers just prior to a bout; (5) (See 水入り) break granted to sumo wrestlers engaged in a prolonged bout; (P) [EDICT]
(shuǐ, ㄕㄨㄟˇ) water; river; surname Shui [CE-DICT]
中
(じゅう;ぢゅう) (suf) (1) through; throughout; in the course of; (2) all over or throughout (e.g. a place) [EDICT]
(ちゅう) (suf) (1) (See 並・1) medium; average; middle; (2) moderation; (3) (abbr) (See 中一,中学校) middle school; (4) (abbr) (See 中国・1) China; (n-suf) (5) (See 中・じゅう・2) in; out of (e.g. three out of ten people); (6) (See 話し中) during (a certain time when one did or is doing something); under (construction, etc.); while; (P) [EDICT]