短语动词 choke up，可以用于表达人，也可以用于机器

短语动词 choke up 意为“哽咽”，通常指因感情激动而造成的哽咽：

make a person become overemotional and speechless

使人变得过于激动和无语

to make a person begin to cry

使人哭泣

the state of being so emotional that a person is not able to say anything further

一个人因为太情绪化以致于不能再多说什么的状态

a state where a person cannot do anything but cry because of feelings of fear or sadness

一个人由于恐惧或悲伤而只能哭的状态

例如：

She choked up when she began to talk about her mother.

她开始谈起母亲时，便哽咽着说不出话来。

To choke up on stage is a common phenomenon that every student in this academy gets over very easily.

在舞台上哽咽是这个学院每个学生都很容易克服的一个普遍现象。

解析：短语动词 get over 除了“克服”的意思，还有“恢复过来，使明白”等意思。

The student choked up during the examination when he could not answer any of the questions that the examiner asked him.

在考试时，这个学生因回答不了考官问他的任何一个问题而哽咽起来。

此外，choke up 也可以用来表示机器或汽车因为机械故障或引擎关闭而造成的不能启动，例如：

His new car chokes up every time the weather gets cold.

每次天气变冷，他的新车就启动不了。

choke up 还可以意为“阻塞，塞满，堵塞（通道、空间等）”，常用的结构 choke sth (up)  (with sth)，例如：

The water hyacinth grows in profusion and tends to choke up the local rivers.

水葫芦大量生长，容易堵塞当地河流。

解析：in profusion 意为“丰富地；​大量地”。

The roads are choked up with traffic.

几条马路都在塞车。