共50条信息
Many dolphins can dive to a ____(deep) of 200 metres.
Destruction of the environment is one of the most serious ________ (挑战) we face.
We hope you can give us a detailed __________________ (描述) of the procedure.
The boss will fire you if you miss the _____________ (截止日期) for the work.
Some people who had planned to sell their houses are now holding back. This is based on the s__________ that house prices will increase in the coming months.
Enough patience and rich experience are necessary __________（条件，资格）for this position.
The object of these experiments was to find the connection, if any, between the two ___________（现象）.
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