spar 在英语中是什么意思?与 Lingoland 一起探索这个词的含义、发音及具体用法
实战训练, 争论
to fight with someone, especially as a practice or warm-up for a real fight
桅杆, 桁
a thick, strong pole, such as a mast or yard on a ship
晶石, 矿物
a mineral, typically a transparent or translucent one, with a noticeable cleavage