Movable barriers or doorlike openings in walls, fences, or yards.

• Entrances marking access to enclosed areas or properties.

墙、栅栏或院落上的可开合屏障或门状开口。

• 标示进入封闭区域或物业的入口。

Designated boarding or arrival points at an air or transit terminal.

• Numbered positions where passengers embark or disembark.

航站楼内指定的登机或到达区域。

• 乘客登机或下机的编号位置。

Digital logic elements that perform operations such as AND or OR.

• The control electrodes of field-effect transistors.

执行“与”“或”等运算的数字逻辑元件。

• 场效应晶体管的控制电极。

Confines someone by not allowing them to go out.

• Selectively regulates or restricts access to something.

以惩罚为目的不许某人外出。

• 选择性地调控或限制对某物的访问。

A surname.

一个姓氏。