会议开始前,主持人把需要表决的事项一一说明清楚。Huìyì kāishǐ qián, zhǔchírén bǎ xūyào biǎojué de shìxiàng yīyī shuōmíng qīngchu.Before the meeting began, the host explained the items that needed to be voted on one by one.
老师把同学们的作业一一检查了一遍。Lǎoshī bǎ tóngxuémen de zuòyè yīyī jiǎnchá le yí biàn.The teacher checked the students' homework one by one.
他把箱子里的东西一一拿出来,放在桌上。Tā bǎ xiāngzi lǐ de dōngxi yīyī ná chūlái, fàng zài zhuō shang.He took the things out of the box one by one and put them on the table.