1 center

2 heart

3 core

4 classifier: 个 gè

1 to grieve

2 to be broken-hearted

3 to feel deeply hurt

1 heart

2 innermost being

3 (math.) incenter

1 to be careful

2 to take care

1 to work

2 (of a machine) to operate

3 job

4 work

5 task

6 classifier: 个 gè

7 classifier: 份 fèn

8 classifier: 项 xiàng

1 of one heart and one mind (idiom)

1 to do two things at once (idiom)

2 to multitask

3 to divide one's attention

1 to set one's heart on sth (idiom)

1 in two minds about sth (idiom)

2 half-hearted

3 shilly-shallying

1 lit. not to stop until one reaches the Yellow River (idiom)

2 fig. to persevere until one reaches one's goal

3 to keep going while some hope is left