1crack，英文单词，名词、动词、形容词，作名词时意为“ 缝隙；声变；噼啪声”，作动词时意为“使破裂；开启；变音；破裂；崩裂”，作形容词时意为“最好的；高明的”。
2Plastic containers for juice and milk do not work as well because they tend to crack and leak more readily.装果汁和牛奶的塑料制品并无法达到一样好的效果，因为它更容易破裂漏水。
3The seams must not crack or break on achieving this measurement and the neck must return to its original shape without sign of distortion.拉申时不能为了实现规格造成接缝破裂或爆口而且头颈务必恢复到原先的形态没有扭曲的征兆。
