第3行应该是渐强音.The third line should be one crescendo.重音音符是表示强音的符号.An accent is a mark representing stress.强音拍,强节奏: 通常带有很强的击鼓声和贝司乐的音乐.Beats: music, usually with heavy drum and bass....

“强音”的英语可以翻译为：ictus ...

“强音部”的英语可以翻译为：arsis ...