Before-hand
事先；预先
🧩 词语组成解析
before
[bɪ'fɔr]
prep. 在…之前;先于，优于;当着…的面;与其…;
conj. 在…之前;在…以前;比…早些;与其…;
adv. 先前，从前;在前，在前方;
be构成一些介词+fore前面→在前面
hand
[hænd]
n. 手;协助，帮助;（工具等的）把，柄;掌管;
vt. 传递，交给;搀扶;支持;
🗣️ 情景例句
Good-bye, Mr. Carlson. Thanks.
再见， Carlson先生。谢谢。
Could you tell me where the nearest telephone is?
你能告诉我最近的电话在哪儿吗？
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.
藏书使教育成为可能，而教育反过来又丰富了藏书，因为知识的增长遵循着一种“滚雪球”的规律。印刷术的发明又大大提高了知识增长的速度。