Afraid of being lanughed at, I never put up my hand to answer questions in English class.
害怕被嘲笑，所以英语课上我从来不举手回答问题。
She is pragmatic and always puts up her hand to answer teachers' questions.
她很活跃，经常积极举手回答老师的问题。
She put up her hand to show that she knew the answer.
她举起手以表明她知道答案…（翻译真不好干啊，还是意念比较好理解）
Frustrated and afraid of being laughed at, I never put up my hand to answer questions in English class.
灰心、失望、羞于被嘲笑，所以英语课上我从来不单手回答问题。
"They'll answer a question, " she said, "and if it's wrong, their hand is back up, trying to figure out the answer. "
她说：“通常情况下，如果孩子们举手回答问题答错了，手就缩回去了，对这个问题就再也不闻不问了。”
The answer was to place the speaker cabinet on its back, place the mic right up against the grill, then cover the whole thing with blankets, sleeping bags and anything else that came to hand.
答案便是，将箱子背面朝底，将麦克风直接向上对准架子，然后将所有的设备用毯子、睡袋或者是任何你手头能搞到的东西。
If you have any questions, please put up your hand. please answer my question, listen to me Do you understand? You got it. it could be discussed later.
请有问题的同学举手，(你回答我的问题、听我讲解、)都明白了吗？
If you have any questions, please put up your hand. please answer my question, listen to me Do you understand? You got it. it could be discussed later.
请有问题的同学举手，(你回答我的问题、听我讲解、)都明白了吗？
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