reef
nounB1
尚未加入翻譯。
例句
“The boat stopped near the coral reef.”
自己說出來
聽、跟讀，並獲得發音分數。
reef
載入中…
A submerged ridge of rock or coral near the surface of the water.
例句
The boat stopped near the coral reef.
查看同義詞（1）
練習
聽、打字，然後檢查。
速度
和 Sunny 練習「reef」
用剛學的內容回答問題，並獲得建議修正。
開始說話Write about it — Sunny checks it
Write a few sentences using what you just learned. Get an estimated level for the sample, explanations of key errors and a suggested revision.
Write 3 sentences about your life using the word "reef".
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