Focal interval
[医] 焦间距(前后焦点间的距离)
🧩 词语组成解析
focal
['fəukəl]
adj. 焦点的，有焦点的;集中在点上的;病灶的，病灶性的;
🗣️ 情景例句
It is important to speak directly and clearly about your subject.
直接了当且明白清楚地说明自己的目的是很重要的。
Don't you think she's cute?
你不认为她很可爱吗？
This is because they had no natural enemies until the arrival of humans and therefore did not need to develop flying wings.
这是因为人类到达这里之前，这些鸟没有天敌，因此，它们不需要发育飞行的翅膀。