The 6-pounder had since been active in every battle-field.It was sometimes used as a main gun mounted on the Cromwell tank while had been deployed even on a warship fighting in the sea.是什么意思_The 6-pounder had since been active in every battle-field.It was sometimes used as a main gun mounted on the Cromwell tank while had been deployed even on a warship fighting in the sea.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句