1·They include dialogue, synchronous and asynchronous sound effects, and music.
它们包括对话、同步和异步的音效以及音乐。
2·Synchronous sound effects are those sounds which are synchronized or matched with what is viewed.
同步音效是指那些与观看内容同步或匹配的声音。
3·Synchronous apexcardiogram and echocardiogram were also studied in 25 normal persons and 3 cases of rheumatic heart disease.
还对25名正常人和3例风湿性心脏病患者进行了同步心尖和超声心动图检查。
4·Transitions within states should normally be synchronous, since there is no change of owner.
状态间的转换通常应该是同步的，因为所有者没有改变。
5·Are they synchronous or asynchronous?
它们是同步还是异步的？