Spring safety valve
[化] 弹簧安全阀
🧩 词语组成解析
spring
[sprɪŋ]
n. 春季;泉水，小溪;弹簧，弹性;跳跃;
vi. 跳，跃;突然发出或出现;发源;劈开，裂开;
vt. 突然跳出;跳过;使开裂;
adj. 春天的;弹簧的，有弹性的;
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
A stitch in time saves nine.
亡羊补牢，犹为未晚。
Does it make any difference to you whether we have our lesson at two o'clock or at three o'clock?
我们在两点上课还是在三点上课，你觉得有关系吗？
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.
最近有个学生看见两个工人在学校门外用风钻干活，马上打电话报告警察，说有两个学生装扮成工人，正在用风钻破坏路面。