Outer boundary
外边界
🧩 词语组成解析
outer
['aʊtɚ]
adj. 外面的，外部的;远离内部（中心）的;[哲]客观外界的，物质的;
n. 环外命中;
🗣️ 情景例句
for a new member of the Stewart family.
给Stewart家的新成员了。
I'm afraid you will be too tired
我怕你会太疲倦。
Then the food won't get too hot. We must keep it cool.
“这样食物才不会变得太热。我们得让它凉着。”