用at birth翻译我出生时有三公斤重我的翻译:①I was 1 kilogram when I was at birth.②I was 1 kilogram when I at birth.③I was 1 kilogram at birth.那个对?请解释一下.at birth前要加be动词吗?

问题描述:

用at birth翻译
我出生时有三公斤重
我的翻译:
①I was 1 kilogram when I was at birth.
②I was 1 kilogram when I at birth.
③I was 1 kilogram at birth.
那个对?请解释一下.
at birth前要加be动词吗?

正确句子是:I was 1 kilogram at birth.
at birth本身就是“在出生的时候”

I was 1 kilogram when I was at birth.

第三句是对的,at birth前不加be,要熟记
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