书籍 Solutions - 基础 - 单元 4 - 4E

(of a person) having an obligation to do something or to take care of someone or something as part of one's job or role

feeling unhappy and afraid because of something that has happened or might happen

having no space left

having a quality that is not satisfying

getting a bad and anxious feeling from a person or thing because we think something bad or dangerous will happen

having the ability to learn or understand quickly

not satisfied or happy with something, because it did not meet one's expectations or hopes

receiving a lot of love and attention from many people

nice and caring toward other people's feelings

familiar with or accustomed to something from past experience