1 a hundred answers to a single call (idiom)

2 to respond en masse

1 thousand

1 ten million

2 countless

3 many

4 one must by all means

1 magnificent army with thousands of men and horses (idiom); impressive display of manpower

2 all the King's horses and all the King's men

1 surname Bai

1 news pass quickly from mouth to mouth (idiom)

2 an infectious disease spreads quickly (old meaning)

1 a hundred answers to a single call (idiom)

2 to respond en masse

1 one command brings a hundred responses (idiom); having hundreds of attendants at one's beck and call

1 a single slip may cause everlasting sorrow (idiom)

1 one word worth a thousand in gold (idiom)

2 (in praise of a piece of writing or calligraphy) each character is perfect

3 each word is highly valued