他们分散寄住在当地美国人家庭里，但他们的居住和学习条件常常因为这些家庭各方面的变化而不稳定。
They are arranged in local families, but due to various reasons their lodging is not so stable, and their study is affected.
他们分散寄住在当地美国人家庭里，但他们的居住和学习条件常常因为这些家庭各方面的变化而不稳定。
They are arranged in local families, but due to various reasons their lodging is not so stable, and their study is affected.
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