1. 洋槐：eucalyptus 桉树 | locust 洋槐 | wattle 金合欢树
2. 蝗：locomotive 机关车 | locust 蝗□ | lodge 小屋
1. 蝗虫
Locusts are large insects that live mainly in hot countries. They fly in large groups and eat crops.
noun
1. migratory grasshoppers of warm regions having short antennae
2. any of various hardwood trees of the family Leguminosae
Synonym: locust tree
3. hardwood from any of various locust trees