Waveguide
[計] 波導, 波導管\\n[化] 波導
??? 情景例句
Jeans are popular among the young.
牛仔褲很受年輕人喜愛。
No sweat, no sweet.
不勞則無獲。
Oh! Well, for that, you'd better find an English pen friend.
哦！那你最好為此找一個英文的筆友。