?? 詞語組成解析
sir
[s?]
n. 先生;（用于姓名前）爵士;（中小學生對男教師的稱呼）先生;老師;
n. 恩斯特（人名）；艾倫斯特（人名）
n. 鮑里斯（男子名）
chain
[t?en]
n. 鏈子，鏈條;連鎖，連續;拘束;連鎖店或旅館系列的事物;
vt. 用鐵鏈鎖住;監禁，束縛;
??? 情景例句
I thought you stayed home with Robbie?
我還以為你是跟Robbie待在家里的
If you have no hand, you cannot make a fist.
巧婦難為無米之炊。
when she remembered that she had gone shopping after the home help had left and she knew that she had turned both keys in their locks,
但突然記起來了，幫手是在她出去買東西之前走的，她還記得曾用了兩把鑰匙把大門鎖上了。