记忆方法
1. sack => sac.
中文词源
sac 囊
来自法语 sac,囊，来自拉丁语 saccus,袋子，口袋，词源同 sack.
英语词源
- sac
-
sac: see sachet
- sac (n.)
- "biological pocket," 1741, from French sac, from Latin saccus "bag" (see sack (n.1)).
- Sac
- central Algonquian people who lived near the upper Mississippi before the Black Hawk War of 1832, from French Canadian Saki, probably a shortened borrowing of Ojibwa (Algonquian) /osa:ki:/, literally "person of the outlet" (of the Saginaw River, which itself contains their name, and means literally "in the Sauk country").
权威例句
- 1. Good morning. This is Brown from SAC.
- 早上好, 我是SAC公司的布朗先生.
- 2. RAR α expression level of SAC activated CBL was increased by RA ( P
- RA上调SAC活化CBL中RAR-α的基因表达水平 ( P
- 3. Amniocentesis is the removal of fluid from the amniotic sac.
- 羊膜穿刺术是从羊膜囊抽取羊水的技术.
- 4. The peritoneal cavity is a closed sac.
- 腹膜腔是一个封闭的囊腔.
- 5. The heart sounds are muffled when the pericardial sac is distended with fluid.
- 当心包充满液体时心音减弱.
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