sentence句子可数吗

　　Reducing prison sentences would send the wrong signals to criminals.

　　减刑会向犯罪分子发出错误的信号。

　　He was sentenced to three years inside.

　　他被判三年监禁。

　　The murderer was given three life sentences, to run concurrently.

　　这个杀人犯被判处三项无期徒刑，同时执行。

　　A compound sentence contains two or more clauses.

　　复合句包含两个或多个从句。

　　He was sentenced to two years' youth custody.

　　他被判处在少年犯拘留所拘禁两年。