A trial with different tending methods was conducted in a 7 year old loblolly pine plantation on a low hill at Wengyuan county of Guangdong province.是什么意思_A trial with different tending methods was conducted in a 7 year old loblolly pine plantation on a low hill at Wengyuan county of Guangdong province.在線翻譯_英語_讀音_用法_例句