孩子们有把房间弄乱的倾向。
Children have a ___propensity to make a mess in their rooms.
孩子们对甜食的偏好往往比成年人更强。
Children often have stronger ___propensities for sweets than adults.
她有一种早起锻炼的倾向，即使在周末也是如此。
She has a ___propensity to exercise early in the morning, even on weekends.
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