But international security expert Paul Cornish from the Chatham House in London says it is too early to call the British operation in Helmand province a success.是什么意思_But international security expert Paul Cornish from the Chatham House in London says it is too early to call the British operation in Helmand province a success.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句