Maintenance frame
[计] 维护帧
🧩 词语组成解析
frame
[frem]
n. 框架;眼镜框;组织;边框;
vt. 陷害;设计;表达;使适合（某一特殊用途）;
adj. 有木架的，有构架的;
🗣️ 情景例句
He never drinks except on special occasions.
除非在特别场合，他从不喝酒。
I wish I were running across an open field.
我真希望在原野奔跑。
One evening, however, he failed to arrive.
可是，有一天晚上，它出去后再也没回来。