Prinipal strain
[机] 主应变
🧩 词语组成解析
[机] 头, 支配者; 主要的, 第一位的
strain
[stren]
vt.& vi. 拉紧，拉伤;用力拉;
n. 血统，家族;性格，脾气;语气;一段音乐;
vt. 拉紧，拽紧或扯紧;尽量使力;扭伤;歪曲;
vi. 不懈;受到强大的压力;拉紧，紧绷;
strain拉，压 → 尽力拉；工作过度
🗣️ 情景例句
Those were great days and we were very happy.
那些日子美好极了，我们过得很幸福。
Hasty love,soon cold.
爱得匆忙冷得快。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.
美洲土著人捕捉野马，加以驯服。