Clenches
v. 緊握, 抓緊, 咬緊( clench的第三人稱單數 )
??? 情景例句
Very splendid. How about patent rights?
很不錯。它的專利權怎么樣呢？
Let difficulties occur but not the loss of courage.
縱使困難重重，也不喪失勇氣。
Like exercise books, rulers, pens, colour pencils, erasers and maps.
像練習本、格尺、鋼筆、彩色鉛筆、橡皮和地圖等。