rock-solid

音標發(fā)音

But the firm needs to rebuild its reputation for rock-solid reliability too.
不過豐田同樣需要重建其堅實可靠品質(zhì)的信譽。
A key attribute of the mainframe over the years has been its rock-solid security at the hardware and software level.
大型機多年來的一個關(guān)鍵特征是在硬件和軟件級別具有可靠的安全性。
All the better to sing with, she thought: great resonating cavities in her head and chest, a rock-solid diaphragm and (as she confessed with gales of laughter) a big mouth.
她認爲有這些唱歌會更好：她頭和胸部有著大麪積共振空腔，絕對可靠的隔膜和（她一陣狂笑著承認）一張大嘴。

Most fundamental of all, David has a rock-solid faith in the enduring strength of our country.
FORBES: These Numbers Don't Figure
Its bond yields have soared in comparison with (hardly rock-solid) Russian federal Eurobonds (see chart).
ECONOMIST: Russian business
It's a dominant consumer products franchise with a history of steady growth and rock-solid financial strength.
FORBES: Magazine Article

Something that is rock-solid is extremely hard.
If you describe someone or something as rock-solid, you approve of them because they are extremely reliable or unlikely to change.