sweetness /ˈswiːtnəs/ noun Learner's definition of SWEETNESS
[noncount]
1
: the quality of tasting or smelling sweet甜；香 2
: the quality of being kind or loving和蔼；亲切 3
: the quality of being pleasant or appealing美妙；愉悦
sweetness and light
: pleasant and enjoyable令人愉悦的；惬意的 -
Life is not all sweetness and light.生活并不全是轻松惬意的。
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She was yelling at us all morning, but when the guests arrived, she was all sweetness and light.整个上午她都冲着我们大喊大叫，可是客人一到，她又是一副和蔼可亲的样子了。