toggle-switch

n electrical switch operated by a short lever which is moved (usu) up and down 扳纽开关; 肘节开关.

tocsin, tod, today, toddle, toddler, toddy, toe, toe-cap, toe-hold, toe-nail, toff, toffee, toffee-apple, toffee-nosed, tog, toga, together, together with, togetherness, toggle, togs, toil, toiler, toilet, toilet water, toilet-paper, toilet-roll, toilet-train, toilet-training, toiletries, toing, token, Tokyo, told, tolerable, tolerably, tolerance, tolerant, tolerantly, tolerate,