40. The equipment must be bought from a supplier approved by the company.
设备必须从公司认可的供应商那里购买。
41. He moved into this house in April.
他是四月份搬进这所房子的。
42. His left arm was hurt in an accident.
他的左胳膊在一次事故中受伤了。
43. Justice has long arms.
天网恢恢，疏而不漏。
44. They were not allowed to use arms.
不许他们使用武器。
45. The new battleship shall be armed with 16-inch guns.
新战舰将以16英寸口径的大炮武装起来。
46. He joined the army a year ago.
一年以前，他参军了。
47. The increasing army of the unemployed has attracted the attention of the economist.
不断增长的失业大军引起了这名经济学家的关注。