F-value
焦距值
🧩 词语组成解析
🗣️ 情景例句
Throughout my education.
学生时代。
Mary is in her freshman year.
玛丽大学一年级。
It was not forced upon them by the survival competition; they could have caught and lived on prey without using poison, just as the thousands of non-poisonous snakes still do.
毒液不是生存竞争强加给它们的，它们也可以不用毒液捕捉动物而生存，就像今天成千上万的无毒蛇那样。