BC，AD，WB，PETS，TOEFL，GRE，ESL，TESOL，BFT的英文全称和中文意思是什么？

BC公元前
ad公元Anno Domini
World Bank 世界银行
TOEFL n. [缩]test of English as a foreign language 托福测验,英语作为外国语的考试
GRE
Graduate Record Examination,美国研究生入学考试
ESL
English as a second language非母语英语课程
BFT
Binary File Transfer,二进制文件传输
TESOL
[缩]teachers of English to speakers of other languages 操它语者的英语教师