| 单词 | at the speed of |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔astonished〕The doctors were astonished at the speed of her recovery.她康复速度之快令医生们感到惊讶。剑桥高阶〔speed〕Radio waves travel at the speed of light.无线电波以光速传播。牛津搭配〔speed〕We were surprised at the speed of the response to our enquiry.这么快就得到了答复，让我们很惊讶。剑桥高阶An aircraft travelling at Mach 1 is travelling at the speed of sound--at Mach 2 it is travelling at twice the speed of sound.马赫值为1的飞机是以音速飞行----马赫值为2是以2倍的音速飞行。剑桥国际The doctors were astonished at the speed of her recovery.她的痊愈之快使医生大为惊奇。剑桥国际We were surprised at the speed of (= how fast we received) the response to our enquiry. (Br) 我们感到很惊奇，我们的询问这么快就得到了答复。剑桥国际 |
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