1 event

2 happening

3 incident

4 classifier: 个 gè

1 item

2 component

3 classifier for events, things, clothes etc

1 (computer) software

1 letter (sent by mail)

1 nimble

1 to act without taking time to think (idiom); to react instantly

2 to fire from the hip

1 to mull over (idiom)

2 to think long and hard

1 lit. to rein in the horse at the edge of the precipice (idiom)

2 fig. to act in the nick of time

1 lit. looking for a fine horse using only a picture (idiom)

2 fig. to do things along rigid, conventional lines

3 to try and find sth with the help of a clue

1 to rack one's brains (for apt wording etc) (idiom)