Retainer bolt
[化] 止动螺钉
🧩 词语组成解析
retainer
[ri'teinə]
n. [机]承盘，挡板;家臣，侍从;[牙科]牙架;保持着;
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
He should just about get by in the exam.
他这次考试还能勉强及格。
Ill news never comes too late.
坏消息来得快。
And this is Xiaohui.She's Chinese, too.
这位是晓惠。她也是中国人。