Malnutrition is thus "invisible" because the children are not "super-thin or dehydrated", says Ian Walker, a social-protection specialist at the World Bank.

一名世界银行的社会保障专家Ian Walker说，因为孩子们不是“特别瘦弱或者脱水”，所以营养不良是“看不出来的”。

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Reid reduced Millwall's deficit when taking advantage of keeper Ian Walker spilling a shot.

BBC: Millwall 2-2 Leicester

Ian Walker, a professor of economics at the University of Warwick, offers a different explanation.

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Goalkeeper Ian Walker is expected to play despite suffering from a badly briused nose at the weekend.

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