Bsa
abbr. 农业科学学士（Bachelor of Science in Agriculture）；美国童子军（Boy Scouts of America）；牛血清蛋白（Bull Serum Albumin）
🗣️ 情景例句
Pete wrote us and told us.
Pete写信告诉我们的。
Sure. Are you a pro-golfer?
当然了。你是指也高尔夫球手吗？
Good afternoon.I believe that this is house is for sale.
下午好。我想这房子是要出售的吧！