Laccifer
紫膠蟲屬
??? 情景例句
I'm afraid not. We don't generally accept a letter of credit.
恐怕不行，我們一般不采用信用卡。
No one (or man) is born wise or learned.
人非生而知之者。
and we control it by means of the mud which we circulate down the drill pipe.
我們讓泥漿順著鉆桿向下循環，用這種方法來控制壓力。