常見例句dielectric dot frequency oscillator 介質(zhì)點頻振蕩器The train arrived on the dot of three o'clock. 那輛火車三點鐘準(zhǔn)時到達(dá)。He said he used this system in the year dot. 他說他很久以前用過這個系統(tǒng)。He went away, limping dot and go one. 他一拐一拐地跛著走開了。He's very punctual always arrives on the dot. 他很守時--總是按時到。She was told to arrive at 8 o'clock on the dot. 她被告知八點鐘準(zhǔn)時到。 返回 dot-frequency