Sphragistics
n. 印章学
🗣️ 情景例句
And when I did,
就算我睡着了，
I enjoy my work too much, that it doesn't even seem like work.
由于我太以工作为乐了，所以不觉得是在工作。
Oxygen is widely used in ship repairs for cutting and joining metal plates or pipes.
在船舶修理过程中，常常使用氧气切割和焊接金属板或金属管。