Bolt circle
[化] 螺栓分布圆
🧩 词语组成解析
bolt
[bolt]
n. 螺栓，螺钉;闪电，雷电;门闩;弩箭;
vt. 筛选;囫囵吞下;（把门、窗等）闩上;突然说出，脱口说出;
vi. （门窗等）闩上，拴住;冲出，跳出;（马等的）脱缰;囫囵吞下;
adv. 突然地;像箭似地;直立地;
🗣️ 情景例句
Excuse me, ma'am. Ticket, please.
对不起， 太太 ，车票请拿出来看一下。
I have received a letter from my cousin.
我收到了我表兄的信。
But in an old man who has known human joys and sorrows,
可是老年人已经饱尝了人间的甘苦，