...pts an Instrument reference. However, in Wind.main() the tune() method is handed a Wind reference. Given that Java is particular about type checking, it seems strange that a method that accepts one type will readily accept another type, until you realize that a Wind object is also an Instrument obje...
...样含义吗？ 4) They sank down sorrowing, without waiting for it to come in words.现在分词sorrowing作伴随状语，我能理解。我的第二个疑问是，上句的现在分词sorrowing是否可以改成过去分词sorrowed作伴随状语，如下：5) They sank down sorrowed, withou...
...（摘自《薄冰英语惯用法词典》p.1134）He said he would come, and that he would bring his son. 他说他会来，而且会把他的儿子带来。（同上）2.在agree, announce, argue, assume, aver, calculate, conceive,
contend, hold, indicate, learn, maintain, object, observe, reckon,...