当他十三岁时, 他那出众的相貌已经显露出来.When he was thirteen, his extraordinary good looks were already apparent.你的姊妹几岁? 她十三岁.How old is your sister? She is thirteen years old.我才十三岁, 皮肤黧黑,头发凌乱, 有点儿孤芳自赏, 也不免形单影只.I was 13, sunburned, shaggy...