1 life (one's time on earth)

1 Mister (Mr.)

1 grave

2 serious

3 severe

4 critical

1 schoolgirl

2 female student

3 girl

1 student

2 schoolchild

1 unfamiliar at first, but well accustomed soon enough (idiom)

1 lit. as clear as water (idiom)

2 fig. (of officials etc) honest and incorruptible

1 a whole lifetime (idiom); all my life

1 lit. to hold a bowl of water level (idiom)

2 fig. to be impartial

1 each word carries weight

2 a promise must be kept (idiom)