It is dishonorable to shirk military service.

逃避兵役是可耻的。

At the age of nineteen he began his duty.

他19岁服兵役。

All 18-year-old males are required to do a year’s military service.

所有18 岁男性公民必须服一年兵役。

His bad eyesight exempted him from military service.

他因视力不好而服兵役。

He did a two-year stint in the army when he left school.

他离学校后服兵役两年。