用“bone of contention”造句大全,bone of contention造句
ButLend-leaseisn'ttheonlyboneofcontentionhere.Themainboneofcontentionisthetemperatureleveloftheair-conditioners.Oneobviousboneofcontentionisthe4,000kmborderthatrunsbetweenthetwocountries.Theborderhas...