这张桌子由实心橡木制成，确保耐用性。

The desk is made from ___solid oak, ensuring durability.

如果你发生事故，坐在一辆大型、坚固的车辆里，受伤的几率更小。

If you have an accident, you have less chance of getting hurt if you are sitting in a big, ___solid vehicle.

房子的地基是坚固的混凝土，所以非常结实。

The foundation of the house is ___solid concrete, so it's very strong.