She is very anxious about her dear old mother. 她十分惦念年迈的老母亲。
Don't worry yourself about the children. They're old enough to take good care of themselves. 别老惦念着孩子们,他们已经长大,自己会照顾自己了。
牛津高阶第八版
美国韦氏词典
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维基百科 (自由的百科全书)