Though the scattered stones look incomplete, they are very solid and safe, confirmed by expert investigations.

看这里乱石交错似乎不太完全，但经过地质专家们的多次考证，这里的岩石是非常稳定而牢固的。

youdao

The city also has safe neighborhoods, solid public schools and robust employment growth, especially in nuclear research.

该市较安全、可靠的公立学校教育和高就业增长率（尤其是核能研究领域）。

youdao

Reward correct, solid, and safe systems.

奖励正确的、牢固的、安全的系统。

youdao

Then I placed my hand on the solid rock of the walls and felt safe.

VOA: special.2009.02.07

There is no doubt that athletes and serious fitness folk need to invest in solid and safe sporting equipment.

FORBES: Sluggish Economy Doesn't Slow Down Outdoor Sports, Like Cycling

The PlayStation brand is Sony's biggest weapon in this war, and its reputation for being solid, reliable and safe is paramount to its chances of future domination.

BBC: Sony crisis: The expert panel

Individuals seeking to maintain and grow their wealth may want to rush towards safe havens and solid investments like arable land and precious metals.

FORBES: Market Madness, Rampant Irrationality, & Animal Spirits: What Are Investors To Do?