1. In 1929 a great celebration was held on his fiftieth birthday in Berlin.
    1929年, 在他五十寿辰的时候, 人们在柏林举行大的庆祝会.

2. In a heat wave we choose a midnight birthday party and that is the most exciting of all.
    天气炎热时，我们便选择在半夜举办生日聚会，这种聚会是最令人激动的。