蜜: honey...
地下水: groundwater...
怀旧: to feel nostalgic, nostalgia...
轨道: track (for trains etc), orbit (of a satellite), a person's established path in life, desired trajectory (of a business or other endeavor), (audio engineering) track, (quantum mechanics) orbital...
堆砌: to pile up (bricks), to pack, to pad out (writing with fancy phrases), ornate rhetoric...
占领: to occupy (a territory), to hold...
代表团: delegation...
嗨: oh alas, hey!, hi! (loanword), a high (natural or drug-induced) (loanword)...
都: all; both; without exception...
活动: to exercise, to move about, to operate, to use connections (personal influence), loose, shaky, active, movable, activity, campaign, maneuver, behavior...