有些设备很昂贵，但是卫生员的支出并不高。

Some of the equipment is expensive, but hygienists don't cost much.

介绍了我军新研制的军医背囊与卫生员背囊。

This paper introduces the surgeon backpack and medical corpsman backpack which are newly developed for PLA.

当爸爸妈妈辛苦了一天回到家里时，马上又要变身成厨师，裁判员，卫生员，还要兼任营养学家，那太难了。

When mom or dad comes home from a long day of work, we're already asked to be a chef, a referee, a cleaning crew. So it's tough to be a nutritionist, too.