英语最常用的短语（6）

dongzi

61. be/get used to＋v－ing 习惯于
62. be worried/serious about 为……而担心
63. because of=thanks to 由于
64. belong to 属于
65. break out  爆发
66.  break into "闯入, 破门而入"
67. by air mail 寄航空邮件
68. by bus 乘公共汽车
69. by oneself 亲自
70. by phone 打电话
71. by the way 顺便说;顺便问一下