trigger button meaning in English

触发按钮
启动按钮

To do that , you need to add a submission trigger button and the ability to read the returned data , as shown in listing 3
为此，需要添加提交触发器按钮和读取返回数据的能力，如清单3所示：
If you enter a zip code and click the trigger button , you can see the current state of things , as in figure 3
如果输入一个邮政编码并单击触发器按钮，您可以看见事物的当前状态，如图3所示。
Multifunctional . has an expansion port which can be used with different types of controller peripherals . analog stick with two trigger buttons planned for left hand
按键对应，包含各种按键，背面有扳机键，前方面版按钮以及方向键。
Multifunctional . has an expansion port which can be used with different types of controller peripherals . analog stick with two trigger buttons planned for left hand
多功能。带一处外接端口，可以用于不同的周边。左手控制器计划有方向摇杆以及两个扳机键。