sit
by
1．stay near；watch and care for 守护照料
*Mother sat by her sick baby all
night．母亲通宵在生病的婴儿身边照料。
2．observe but fail to act as needed 袖手旁观
*Even when his daughter was in trouble，he just
sat by and did not help．即使他女儿陷入困境时，他也袖手旁观不予支援。
*Don't just sit idly by while the other children
are all busy．别的孩子都正忙着，你不要闲着什么也不干。
