Lectures
n. 演讲, 讲课( lecture的名词复数 ); 冗长的训斥[谴责]\\nv. （向…）演讲, （给…）讲课( lecture的第三人称单数 ); 责备; 教训; （尤指恼人地）指责
🗣️ 情景例句
Be careful not to drink the water in__.
小心点儿，不要乱喝水。
Take two pills and have a good rest.
吃两片药，好好休息一下。
and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom.
我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。