副詞 instantaneously:

1. without any delay
   同義詞：outright, instantly, in a flash

1. After a while Lenin came out on the stage. The ovation was unlike anything I have ever seen. Lenin let it continue for a few minutes, standing absolutely still, then with a single motion of his arms across his body stopped the uproar instantaneously and you could have heard a pin drop.
   不久列寧在臺(tái)上出現(xiàn)了，那種熱烈的歡呼是我從未見過的。列寧先靜靜地站了幾分鐘，讓歡呼聲繼續(xù)著，然后用手在胸前橫揮一下，喝彩聲馬上終止，于是連一根針落地的聲音你都可以聽得到。