But over the coming days, the gobies transform themselves. 但在接下来的几天里 虾虎鱼会改变自己
but for those that do, there can be great rewards. 但风险越高 收益越高
But his aim must be better than that. 但显然还需要继续提高
But there are a few rare places, as here in Lake Malawi, 但在一些罕见之处 比如马拉维湖
Success today, but tomorrow the pack will need to hunt again. 今天是成功了 但明天能否继续成功还是未知数
But when threatened, lechwe always seek the safety of water. 但当驴羚遇到危险时 总是借助水域保护自己
But this pack of five hasn't eaten in days. 但这五只野犬已经好几天没吃过东西了