As the debate went on, tempers began to fray.

　　隨著辯論的繼續(xù)，火氣就上來了。

　　Our next class will take the form of a debate.

　　我們下一堂課將采用辯論的形式。

　　The debate soon degenerated into open warfare.

　　爭論很快惡化，演變成了公開的論戰(zhàn)。