例句：
The airliner took off on time.
班机准时起飞。
The airliner flew above the clouds.
大型客机在云层上面飞行。
The airliner is late.
班机晚点了。
That's an alabaster vase.
那是个雪花石膏做的花瓶。
I was the first time with alabaster …
我是第一次用雪花石膏…
Little alabaster angel.
小白天使。
He gave John some alder bark.
他给了约翰一些桤木树皮。
More tall and stately that the alder.
你比桤木还要高挑和端庄。
Alder trees belong to the birch family.
赤杨属于桦木科。