Beco贝措bev.有；在；是；到达；拜访be in good taste很雅致; 得体be up to no good尽干坏事be opposite from与 ... 相反不相容be out on a limb孤立无援的境地be all attention十分注意be always afloat保持浮泊be at one's doorbe rewarded with得到 ... 的奖赏Bechamp reaction伯钱反应be out of danger脱离危险