turn into a solid

You may feel like a sorrowful pushover getting rejected, but after so many times, you might turn into a solid rock, and it will hurt so much less.

你也许感到像是一个被推…的悲伤的人但是，在许多次后，你也许变成了一块坚固的岩石，痛苦会少地多。

The liquid is maintained above its melting point until steam is required, at which point the liquid is allowed to turn back into a solid, releasing its stored energy.

不需要蒸汽时，液体保持在熔点以上，需要蒸汽时液体才能变成固体，释放其储存的能量。

These materials turn from a solid into a liquid absorbing energy as they change phase.

这些材料在相变时从固体转变为吸收能量的液体。