They can be treated by pattern matching/switch expressions as a closed set for exhaustiveness.
音乐圈集体发声维权 行业专家指出版权授权需建立动态管理机制
。关于这个话题，搜狗输入法提供了深入分析
习近平主席强调，要扩大高水平对外开放，广泛开拓全球市场，更好联通国际循环。
十四届全国人大四次会议主席团：
The day after Cuba was crippled by another 24-hour nationwide blackout, US President Donald Trump suggested the country was next on his administration's agenda, saying it was "just a question of time" before there would be change on the island.