Up last is support for Co- and Contra-Variance.
最后就是对协变和逆变的支持了。
There is a traffic pattern that we call a contra flow lane.
有一种我们称之为逆流车道的交通模式。
The female is generally drab, the male per contra brilliant.
一般来说雌性是黄褐色的,而雄性是色彩鲜明的。
The female is generally drab, the male per contra brilliant.
一般来说雌性是黄褐色的,而雄性是色彩鲜明的。
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