A leakproof bottle for feeding a child includes a first external thread around a bottle opening, and a lower closure ring having a first internal thread, which is screwed onto the first external thread and has at least one first throughflow hole. An upper closure ring has a second external thread on which the lower closure ring sits in a sealing manner and which has at least one second throughflow hole which, by rotation of the upper closure ring relative to the lower closure ring, can be brought into coinciding and non-coinciding positions relative to the first throughflow hole. Locking elements can rotate the lower closure ring and upper closure ring relative to each other and releasable lock them, with a drinking teat and a screw ring having a second internal thread, which is screwed onto the second external thread of the upper closure ring, releasably securing a lower edge region of the drinking teat to upper closure ring.
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