副词

1. 立即；马上；及时
If you do something promptly, you do it immediately.

2. 准时地
If you do something promptly at a particular time, you do it at exactly that time.

1. in a punctual manner

e.g. he did his homework promptly

Synonym: readilypronto

2. at once (usually modifies an undesirable occurrence)

e.g. he promptly forgot the address

Synonym: right away

3. with little or no delay

e.g. the rescue squad arrived promptly
come here, quick!

Synonym: quicklyquick