I'll call the roll before class.

课前我要点名.

辞典例句

T : Quiet now , please. I'm going to call the roll. Jack?

请安静, 我开始点名了. 杰克?

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Before starting off, let's get together and call the roll.

在出发之前咱们先聚齐一下,点一下名!

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T : Now call the roll. Peter?

现在开始点名. 彼得?

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