Vec
abbr. 血管内皮细胞（vascular endothelial cells）
🗣️ 情景例句
It's the first thing people will see when they come in.
这是人们走进来所看到的第一 件东西。
We can't fly our kites any more because the wind has stopped.
由于风静止，所以已经没法放风筝了。
The editor at once sent the journalist a fax instructing him find out the exact number of steps and the height of the wall.
”编辑立即给那位记者发去传真，要求他核实一下台阶的确切数字和围墙的高度。