初级 1 - 情态动词和动作动词

used to show the possibility of something happening or being the case

used to show that something is very important and needs to happen

used to ask if one can do something

used to express a possibility

used to say that something happened frequently or constantly in the past but not anymore

to discover information about something or someone by looking, asking, or investigating

to have or continue to have something

to come or go into a place

to go or come back to a person or place

used to indicate an obligation or to emphasize the necessity of something happening

used when saying goodbye to someone, especially family and friends

to move from a lower to a higher position

to release a particular scent