Well, their answers are a bit weird, from my part of view. Lemme help you. 1. Yogurt that tastes a bit salty. 2. The flavour of this kind of yogurt is sort of like toothpaste, but a bit salty.

味道略带点咸味的酸奶饮料 The flavor is a little like a salty yogurt beverage. 味道类似于牙膏味略带点咸味的酸奶饮料 The flavor resembles a toothpaste-flavor with a slight salty yogurt beverage taste.