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[计] 现场工程师\\n[医] 铁(26号元素)
✅ 同义词
🗣️ 情景例句
OK.
好的。
Would he have seen you if you hadn't waved to him?
如果你没向他招手他会看见你吗？
The comparable speed from the Moon is only 1.5 miles per second.
而从月球出发的相应速度只是每秒1。5英里。