keep sb doing sth. 使某人一直做某事，如
We kept them waiting for us for a long time.
我們使他們一直等我們很長時間。
keep sb from doing sth 阻止某人做某事，如
We should keep them from killing the wild animals.
我們應該阻止他們濫殺野生動物。
希望能幫到你，祝更上一層樓O(∩_∩)O
有不明白的請繼續追問(*^__^*)
Keep your mouth shut and your eyes open.少說話，多觀察。
指懂得并使用字詞，按照一定的句法規則造出字詞通順、意思完整、符合邏輯的句子。依據現代語文學科特征，可延伸為寫段、作文的基礎，是學生寫好作文的基本功。
造句技巧
句子是由詞語構成的，一個句子是由若干個有特定意義的詞語組成。因此，要想寫出好句子，必須要理解自己所運用的詞語，能夠準確理解所要運用詞語的含義，包括其詞性和感情色彩，才能夠更加明晰地表達自己的意思。
The dog is so big that its master can't keep it walking as he want
my mother keeps me washing plates now
sorry to keep you waiting so long
keep sb. doing sth
使某人一直不停地做某事
keep him doing his homework
keep do 使（）處于（）狀態
keep top side up 請勿倒放