學個詞 Learn A Word:858 guarded

今天我們要學的詞是guarded。 Guarded, 謹慎的。最新民調顯示，"Most Americans expressed guarded optimism on President Obama's ability to come up with a successful strategy for Afghanistan," 大多數美國人對奧巴馬找到策略，成功解決阿富汗問題的能力持謹慎樂觀態(tài)度。
奧巴馬訪華期間試圖說服中國，對伊朗加大壓力。"China remains guarded on Iran's nuclear program," 但是中國在伊朗核項目的問題上保持謹慎態(tài)度。全球最大零售連鎖店沃爾瑪第三季度盈利上升。"But Wal-Mart remains guarded on its sales outlook for the year-end holiday season," 但是沃爾瑪對年底假日銷量的預期保持謹慎。好的，今天我們學習的詞是guarded...