Alcs
abbr. 美国联盟冠军赛（American League Championship Series）；飞机控制地面导弹发射系统（Airborne Launch Control System）；全天候自动着舰系统（All-weather Automatic Landing System）
🗣️ 情景例句
Richard feels we need to find a small house. Richard
觉得我们需要一个小住宅。
This is my fourth year of college, I'm a senior.
这是我上大学的第四年，我是四年级学生。
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。