Each time history repeats itself, the price goes up. 英译汉
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The traffic jams during morning and afternoon rush hours are a headache in big cities now.英译汉
Y型通气孔作用是
A. 使助听器高频降低
B. 使助听器高频输出降低
C. 使助听器低频增加
D. 是助听器低频降低
E. 是助听器中频降低
The doctor had no choice but reach out to their colleagues across the nation.英译汉
This place has plentiful material resources. 英译汉
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