Don't be afraid to ask for advice about ordering the meal
点餐时可以大胆征求意见。
You should not be afraid to aim high in the quest for an improvement in your income
Don't be afraid to consider apparently extravagant ideas.
要勇于考虑一些貌似离谱的.想法。
It's very healthy to be afraid when there's something to be afraid of.
不逞匹夫之勇是很明智的。
Don't be afraid of speaking up
别怕，大胆地说。