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 heart

2 mind

3 intention

4 center

5 core

6 classifier: 颗 kē

7 classifier: 个 gè

1 heartbeat

2 heart rate

3 (fig.) emotionally affected

4 aroused (of desire, emotion, interest etc)

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 obvious at a glance (idiom)

1 obvious at a glance (idiom)

1 ten lines at a glance (idiom)

2 to read very rapidly