No explanation was offered, still less an apology.

连个解释都不给，就更不用说道歉了。

I fear one unicorn still less than two giants.

我连两个巨人都不怕，一只独角兽就更不怕了。

If you have got 10 points or above, but still less than 15 points, you will receive a warning letter from the Transport Department.

如果你持有10分或10分以上，但仍低于15分，那么就会收到来自交通部门的警告信。

Conservatives are still less keen.

保守党对此依然没有太多热情。

With avoidance, the tax will raise still less.

但为避免出错，税率增长仍旧甚微。