President Trump spent Thursday in McAllen, Texas attempting to make his case for a border wall, but members of the Texas Border Coalition — including McAllen’s mayor — say an investment in a wall is the wrong choice.

参考译文：在星期四，特朗普总统在德克萨斯州的麦卡伦(McAllen)，虽然他企图/试图为修建边境墙陈述他的理由，但德克萨斯边境联盟的成员-包括麦卡伦的市长-都表示/说，投资修建隔离墙是错误的选择。

(1)McAllen(城市名) , Texas（州名）为修饰谓语动词的2个“地点名词”

(2)现在分词逻辑主语是句子主语“President Trump”作句子“让步状语”

(3)in McAllen, Texas为介词短语作地点状语“在德克萨斯州的麦卡伦”

(4)Texas n.德克萨斯州（美国州名）

(5)McAllen n.麦卡伦（美国得克萨斯州南部一城市）

(6)attempting to make his case for a border wall 为现在分词短语作让步状语，相当于让步状语从句,though/Although he attempted to make his case for a border wall