Upper stem seal
[化] 上阀杆密封
🧩 词语组成解析
upper
['ʌpə]
adj. 地位较高的;上面的;内地的;地表层的;
n. 鞋帮，靴面;兴奋剂;令人兴奋的经历;
stem
[stɛm]
n. （花草的）茎;词干;（高脚酒杯的）脚;烟斗柄;
vt. 遏制[阻止]（液体的流动等）;阻止;封堵;遏止;
seal
[sil]
n. 密封;印章;海豹;封条;
v. 密封;盖章;决定;封上（信封）;
🗣️ 情景例句
I know how you feel, but there's no need to go on and on about it.
我知道你的感受，可是也没必要这样没完没了。
The shortest answer is doing.
最简短的回答就是做。
During that time she so gained my aunt's confidence that she was put in charge of the domestic staff.
在此期间，她赢得了姑母的赏识，甚至当上了大管家。