| alder | |
| 级别 | 第12级 |
| 音标 | [ ˈɔ:ldə(r) ] |
| 解释 | n.赤杨树 |
| 英英释义 | wood of any of various alder trees; resistant to underwater rot; used for bridges etc |
| 发音 |  |
| 例句 |
1. He gave John some alder bark. 他给了约翰一些桤木树皮。 2. Several coppice plantations have been seeded with poplar, willow and alder. 好几个灌木林场都种上了白杨，柳树和赤杨。 |
