劍橋詞典

short form of there would or there had
（there would 或 there had的縮略形式）
She assured me there'd (= there would) be a practice this morning . 她曏我保証今天早晨會(huì)有一場(chǎng)練習(xí)。
They put up the sign because there'd (= there had) been an incident in the past. 他們架起那個(gè)標(biāo)志，因爲(wèi)過(guò)去在這裡發(fā)生過(guò)事故。 返回 there'd