Since the second joiner method calls the first, it requires an explicit String return type.
因为第二个jioner方法调用了第一个，它需要一个显示的String返回类型。
Scala can usually infer the return type of the method (but not the types of the method arguments), so we drop the explicit declaration.
Scala通常可以推断出方法的返回值（但是方法参数的类型就不行了），所以我们不用显式声明。
The exact and explicit solutions of these equations are obtained by using the travelling wave method. These exact solutions are solitary wave solutions of a rational type.
用行波方法得到了这些方程的显式精确解，即有理分式型孤立波解。
An unsealed externally visible type provides an explicit method implementation of a public interface and does not provide an alternative externally visible method that has the same name.
未密封的外部可见类型提供了显式实现公共接口的方法，但没有提供具有相同名称的其他外部可见方法。
An unsealed externally visible type provides an explicit method implementation of a public interface and does not provide an alternative externally visible method that has the same name.
未密封的外部可见类型提供了显式实现公共接口的方法，但没有提供具有相同名称的其他外部可见方法。
应用推荐