用短信请病假是不允许的，你必须打电话。

You're not allowed to text(7) in sick, you have to phone.

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你打电话时必须留下自己的完整姓名及用于联络的详细资料。

You must leave your full name and contact details when you phone.

《柯林斯英汉双解大词典》

这些特价被称为“超级省钱”，当你给航空公司打电话时，你必须要向他们索要。

These special prices are called "super savers", and you have to ask for them when you call the airline.

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