The reason is that three centuries ago, when the jade-like balls of zhucha green tea had made their way across the ocean, although they had not fermented to become black tea, in the eyes of the English they seemed to have "changed" into lead shot.
原來三百年前，珠圓玉潤，有如翡翠珍珠的綠茶，飄洋過海之後雖然沒有「發酵」成紅茶，卻在英國人眼中「變成」了緊紮密實的槍械彈藥。