Unidal
铝镁锌系形变铝合金
🗣️ 情景例句
Men and women, young and old, to give us their time.
不管男女老幼 ，请他们贡献时间。
My class went camping last summer.
去年夏天我们班去露营了。
Certainly! I'm coming now, Dad!
当然可以，爸爸，我马上就来。