您要查找的是不是：
- For my old PC accessory I must buy some conversion adapter such as Z-tek USB to Com、Unknown brand USB to LTP and USB to IRDA. 因為我有很多老設備，所以不得不買(mǎi)了個(gè)力特的USB轉串口，一個(gè)雜牌的USB轉并口，和一個(gè)USB轉紅外線(xiàn)。
- The leading role is played by a complete unknown. 演主角的是一個(gè)毫無(wú)名氣的演員。
- The star of the film is a previously unknown actor. 這部電影里的明星以前是個(gè)默默無(wú)聞的演員。
- Now pay attention its brand please. 現在請注意它的商標。
- Its greater part is unknown to me. 它的大部分對我是未知的。
- He was an unknown painter one year ago. 一年前，他還是一個(gè)不為人知的畫(huà)家。
- She's gone over to a milder brand of cigarettes. 她已改吸另一牌子味道較淡的香煙。
- Own brand goods are often cheaper. 有本店商標的貨物往往比較便宜。
- What brand of vegetable oil are you using? 你正在用的植物油是什么牌子？
- This is a fact hitherto unknown. 這是一個(gè)至今無(wú)人知道的事實(shí)。
- A quantity of unknown numerical value. 未知數數值不明的一個(gè)數量
- Kate is in bad with Lucy for some unknown reason. 因為某些不為人知的原因，凱特和露西關(guān)系不好。
- We use x as the symbol for an unknown quantity. 我們用x表示一個(gè)未知數。
- A trademark used for a brand of petroleum jelly. 凡士林用來(lái)作為石油脂的商標
- It is no safe wading in an unknown water. 不知水深淺，涉水不安全。
- Which brand of toothpaste do you prefer? 你愛(ài)用什么牌子的牙膏?
- The investigation was tabled for reasons unknown. 不知何故調查延緩進(jìn)行。
- This brand of tea is my favorite. 這種茶我最?lèi)?ài)喝。
- The ownership of the house is still unknown. 這棟房子的所有權至今無(wú)人知道。
- The unknown number can be calculated from the data. 通過(guò)已知數可以算出未知數。
