拓宽[tuò kuān]
broaden:
例:他们把这条马路拓宽了不少。
They have broadened out the avenue considerably.
1. Widening:Java支持类类型之间的强制转换,如果B是A的子类,那么B的一个实例亦可作为A的实例来使用,虽然不需要显式的转换,但显式转换亦是合法的,这被称作拓宽(widening).
2. road widening:路测:road testing | 拓宽:road widening | 公路:Road
3. 拓宽
3. Extend:The exchange of needed goods 互通有無 | Extend 拓寬 | Mutually 相互地
4. highway widening:道路:highway | 拓宽:highway widening | 公路:highway