没意思: boring, of no interest...
门: opening, door, gate, doorway, gateway, valve, switch, way to do something, knack, family, house, (religious) sect, school (of thought), class, category, phylum or division (taxonomy)...
翻天覆地: sky and the earth turning upside down (idiom); complete confusion, everything turned on its head...
重心: center of gravity, central core, main part...
牙刷: toothbrush...
观光: to tour, sightseeing, tourism...
