Some strings are in Avogadro are hard to translate without context. For
example, what is “QM Matches”. Quantum Molecular Matches? No idea.
If you think that the meaning of a string is not 100% clear please add a
comment for translators. That works like this:
rbc = new QRadioButton(tr("Enabled", "Color frame"), this);
rbh = new QRadioButton(tr(“Enabled”, “Hue frame”), this);
In these case the translator would get context-information ("Color frame"
and “Hue frame”) in Linguist while the GUI would show “Enabled” in both cases
(when LC == English).