Tunnelling under the English Channel is a big proposition.
在英吉利海峡海底凿隧道是一个大问题。
channeling详细解释
chan.nel.ing n.(名词)Purported communication by a disembodied entity through a living person, as by voice during a trance.沟道作用:传说中一种游离躯壳与活人进行的交流,如催眠状态时通过声音进行交流