morale:the amount of confidence and enthusiasm, etc. that a person or a group has at a particular time 士气
to boost/raise/improve morale
鼓舞╱提高士气;增强信心
Morale amongst the players is very high at the moment.
此刻选手们士气很高.
Staff are suffering from low morale.
员工们士气低落.
discontent:a feeling of being unhappy because you are not satisfied with a particular situation; something that makes you have this feeling 不满;不满足;不满的缘由 noun uncountable countable ~ (at/over/with sth)
There is widespread discontent among the staff at the proposed changes to pay and conditions.
员工们对改变工资和环境的建议普遍不满.
drawback:a disadvantage or problem that makes something a less attractive idea 缺点;不利条件 noun ~ (of/to sth) ~ (of/to doing sth)
The main drawback to it is the cost.
它的主要缺点是成本高.
This is the one major drawback of the new system.
这是新系统的一大弊端.
