therefore

ad.因此，所以

theoretical, theoretically, theorist, theorize, theorize, theorise, theory, theosophical, theosophist, theosophy, therapeutic, therapeutically, therapeutics, therapist, therapy, there, there and then, thereabouts, thereafter, thereby, therefor, therefrom, therein, thereinafter, thereof, thereon, thereto, thereunder, thereupon, therewith, therm, therm(o)-, thermal, thermal capacity, thermionic, thermionic valve (US ,thermionic `tube), thermocouple, thermodynamics, thermoelectric, thermometer, thermometre,