n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
Be careful, I think the neighbors have been spying on us.
小心点,我觉得我们邻居一直在窥视我们。
I'll call the roll before class.
课前我要点名。
In this part of the cave, they could hear an insistent booming sound which they found was caused by a small waterspout shooting down into a pool from the roof of the cave.