Margin call
补充保证金通知，增收保证金，征收保证金的要求
🧩 词语组成解析
margin
['mɑrdʒən]
n. 边缘，范围;极限;利润，盈余;（版心外）的空白;
vt. 留边;成为…的边;加边于，围绕;为…加旁注;
call
[kɔl]
v. 呼唤，喊叫;召唤，叫来，召集;下令，命令;打电话给;
n. 喊叫，大声喊;电话联络;必要，理由;要求;
🗣️ 情景例句
That's what makes this spot so good.
那就是为什么这个地点这样好的道理。
A straw shows which way the wind blows.
一叶便知秋。
The system has worked so well, that it has been adopted in other countries too.
由于这种制度行之有效，已被其他国家采纳。