Hinge upon
vi. 随……而定
🧩 词语组成解析
hinge
[hɪndʒ]
n. 铰链，折叶;关键，转折点;枢要，中枢;
vt.& vi. 用铰链连接;依…为转移;给…安装铰链;（门等）装有蝶铰;
vi. 依…而转移;
upon
[ə'pɑn]
prep. 在…上面;当…时候;
🗣️ 情景例句
He lost his money due to his own carelessness.
由于大意，他丢了钱。
A faithful friend is hard to find.
益友难得。
The clouds had come down so suddenly we had no warning.
乌云突然出现，我们丝毫没有觉察。