e.g from 6.4 Feeling unwell has a strong paraphrase:
Nǐ de liǎnsè hěn cāngbái.
Clearly there is no character for 'look' in this phrase,
Could you please change it to more literal translation such as "your face is very pale", so that it matches the characters we are learning.
In general we would be better served with a more literal translation, as others have previously commented - but if it has a local idiom meaning then you could always add a paraphrased version in brackets at the end.