骨干

It’s only really the hard core that bother(s) to go to meetings regularly.

只有那些坚定的骨干分子才会怕麻烦定期去开会。

The older employees are the backbone of the industry.

富有经验的雇员是行业的骨干。

In 1998, some cadreman are admitted as shareholder.

1998年，公司部分骨干吸收为股东。