王牌: trump card...
限定: to restrict to, to limit...
转眼: in a flash, in the blink of an eye, to glance...
毫无: not in the least, to completely lack...
严厉: severe, strict...
信仰: to believe in (a religion), firm belief, conviction...
存: to exist, to deposit, to store, to keep, to survive...
赤道: equator (of the earth or astronomical body)...
学时: class hour, period...
无线: wireless...
