短语词组短语protect dubiously 警戒dubiously oriented 目标不明确的hesitate dubiously 怀疑地犹豫aid dubiously 不可靠地帮助look dubiously 犹豫不决的样子encourage dubiously 不可靠地援助But Dubiously 但心寸疑虑reply dubiously 不可靠地回答fix dubiously 不可靠地确定 返回 dubiously