Brad infers from this cloud of points that higher unemployment typically points to more rapid subsequent growth .

布拉德从这个云点图推断，高失业率一般可以使未来的经济增长更迅速。

In type inference , the compiler infers the types of values based on the context .

在类型推断的情况下，编译器会根据上下文推断值的类型。

When the return type of a method is inferred and you don 't use an equals sign before the opening parenthesis for the method body , scala infers a unit return type , even when the last expression in the method is a value of another type .

当方法的放回类型被推断而你又没有在方法主体的大括号前使用等于号的时候，即使方法的最后一个表达式是另外一个类型的值，scala也会推断出一个unit返回类型。