同根派生 stress marks相关词英汉例句A foot of verse used in lyric poetry having two unstressed syllables flanked by the two rhythmic stresses marking the first and last syllables of the foot.扬抑抑扬格一种应用于抒情诗诗体中的音步，由两个轻音节夹在两个有节奏的重音之间构成，用于表示该音步的第一个和最后一个音节stress marks更多例句