Stiffeners
n. 加强剂（stiffener的复数）
🗣️ 情景例句
Seven after nine? No. I'm sure he's in his office.
九点零七分 ，不会太早的。我肯定他到办公室了。
Is it true that manufacturing of automobiles is a major industry?
汽车生产是主要工业是真的吗？
Well, have you forgotten already?
嗯，你已经忘了吗？