Heddur
黑杜尔铝合金(飞机用, 与硬铝很相似)
🗣️ 情景例句
Richard, did you go to the aerobics class, really? Richard
你真的上了有氧运动课吗？
The increase in sales is being maintained.
销售额持续增长。
This greatly reduced the speed of the ship,
这样一来，大大降低了船的航速。