stricture|strictures

医生发现他的尿道有狭窄，需要进行手术。

The doctor found a ___stricture in his urethra that required surgery.

新的法律对言论自由施加了严厉的限制。

The new law places harsh ___strictures on freedom of speech.

政府对进口商品施加了严格的限制。

The government imposed heavy ___strictures on imported goods.