1. to ask
2. to invite
3. please (do sth)
4. to treat (to a meal etc)
5. to request

1. to wear
2. to put on
3. to dress
4. to bore through
5. to pierce
6. to perforate
7. to penetrate
8. to pass through
9. to thread

1. (pronoun) this; these
2. (bound form) this; the (followed by a noun)
3. (bound form) this; these (followed by a classifier) (in this sense, commonly pr. zhèi, esp. in Beijing)

1. two
2. double
3. pair
4. both
5. even (number)

1. slippers
2. sandals
3. flip-flops

classifiers: 雙, 隻