他鼓足勇气，终于决定向房东提出电线不安全的问题。
He steeled his nerves to finally confront his landlord about the unsafe wiring.
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解释
形容为应对冲突或对峙而鼓足勇气。
He steeled his nerves to finally confront his landlord about the unsafe wiring.
形容为应对冲突或对峙而鼓足勇气。