Lewisson
n. (=lewis)[機]吊楔, 鳩尾起重機
??? 情景例句
That's five points also.
也是五分。
It's earier to run down the hill than go up.
下山容易上山難。
In fact, it would be an assistance to all carnivores though it would be a two-edged weapon when they fought each other.
因此，任何食肉動物有了毒液，都能從中獲益。