1.duel with 決斗

Meanwhile, in the distance, Christian Phalangist militiamen “engaged in an artillery duel with another unit that we were unable to identify.
與此同時，在遠處，黎巴嫩右翼基督教民兵“正在和一只不明身份的部隊展開一場火炮決斗。
Jackson was also injured during an 1806 duel with famous marksman Charles Dickinson, during which Dickinson shot the future president in the chest.
杰克遜1806年在和著名的神槍手查爾斯·迪金森的一次決斗中也曾受槍傷，那次決斗，迪金森射中了未來總統的胸部。

2.be made of 由…所組成；由…造成

My,it must be made of copper.
哇，這只蘋果準是銅做的吧。

It appears to be made of cotton,the Man said.
看起來好像是棉花做的。男人說。