用几醋浸泡瘦肉或者便宜的红肉可以软化其中的粗质纤维使肉质更加松软，并且醋还可以杀死肉里面的有害细菌。
Soaking a lean or inexpensive cut of red meat in a couple of cups of vinegar breaks down tough fibers to make it more tender-and in addition, kills off any potentially harmful bacteria.
他背着背包、拖着装运食品和工具的雪橇在雪地上跋涉，松软厚实的积雪导致旅途更加艰难。
Soft, deep snow made for some tough slogging with his backpack and sled carrying his food and gear.
但是，在松软的土层上，长周期地震波的震动会被放大，可能使摩天大楼的摇摆更加剧烈。
But on soft soils, vibrations from long-period seismic waves are amplified, possibly exacerbating the swaying of skyscrapers.
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