Spools
n. （绕线、铁线、照相软片等的）管( spool的名词复数 ); 络纱; 纺纱机; 绕圈轴工人\\nv. 把…绕到线轴上（或从线轴上绕下来）( spool的第三人称单数 ); 假脱机（输出或输入）
🗣️ 情景例句
if, and I repeat,
只要， 我重复一遍，
I won't embarrass you in front of your friends.
我不会在你的朋友面前使你丢丑。
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。