1. to go online
2. to connect to the Internet
3. (of a document etc) to be uploaded to the Internet
4. (tennis, volleyball etc) to move in close to the net

1. no
2. is not
3. not

1. heel
2. to follow closely
3. to go with
4. (of a woman) to marry sb
5. with
6. compared with
7. to
8. towards
9. and (joining two nouns)

1. medicine
2. medical science
3. study of medicine

1. maybe
2. perhaps
3. might
4. possibly
5. or

1. Original form of 國／国 (guó, “country”).
2. Original form of 域 (yù, “range; territory”).

1. mental disorder
2. psychosis

1. to have sth to do with
2. to relate to
3. related to
4. to concern
5. concerning

1. of; ~'s (possessive particle)
2. (used after an attribute when it modifies a noun)
3. (used at the end of a declarative sentence for emphasis)
4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 pígéde "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
5. also pr. dì or di in poetry and songs

classifiers: 件, 樁