Concave tree of region
[计] 区域凹树
🧩 词语组成解析
concave
['kɔn'keiv]
n. 凹面，成凹形;
adj. 凹的;
vt. 使成凹形;
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
🗣️ 情景例句
Come in, Michelle,
请进 ，Michelle
I had my breakfast on the way.
我在路上吃的早饭。
You can trust us, sir. Let me measure you, sir, for some suits and some shirts too.
先生，您可以相信我们。先生，我来给您量一量套装的尺寸，还有衬衣……。好，请您来看看这些料子。我想您会认为这些料子好得多，更合适得多。