A beetle invasion in the United States has killed at least 20 million ash trees.
A beetle invasion in the United States has killed at least 20 million ash trees.
外来甲虫入侵美国已使2千万颗白腊树致死。
A beetle invasion in the United States has killed at least 20 million ash trees.
外来甲虫入侵美国已使2千万颗白腊树致死。