He got a large piece of cardboard, painted a sign begging for the bicycle to be returned, and tied the sign to the letterbox.
他拿了一大块硬纸板,画了一个乞求归还自行车的牌子,然后把牌子系在了信箱上。
For example, if your child asks about a stop sign, you can describe the sign and explain its meaning.
例如,如果你的孩子问你关于禁行标志的事,你可以描述它的样子并解释它的意思。
If the pattern specifies a leading minus sign for negative input, a trailing minus sign is ignored.
如果该模式指定前置负号为负输入,后置负号将被忽略。
For thousands of years, the eye of Horus remained as a sign of the god's help to the suffering and sick.
VOA: special.2009.03.22
For the Left, it was a sign that the state is strong, powerful, and can be vicious.
左派看来,它标志着国家是强大有力的,同时也可能是邪恶的
So now we have a different sign for delta H and it still happens spontaneously.
现在自由焓的变化的符号不一样了,但是这个过程仍然自发的进行。
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