1.Different hemoglobins have different combinations of these chains. 不同的血红蛋白是肽链的不同组合。 2.Well,it's a combination,I think,of reasons. 原因有很多。 3.All of these adjective and preposition combinations have specific meanings...
7. Do you have any openings? 你们有空缺吗? 8. Think nothing of it. | 别放在心上。 9. Don't beat around the bush. 别拐弯抹角了。 10. It's up in the air. 尚未确定。 11. It sl...
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