She wore a string of pearls at her throat...她戴了一串珍珠项链。She took a sip of water to moisten her dry throat.她抿了一口水，润一下发干的喉咙。My throat is still tender.我的嗓子还在痛。Ted grinned in evasion and cleared his throat.特德咧嘴笑了笑，避而不谈，然后清了清嗓子...
Conclusion The LC - ESI - MS method are useful to quality control of kitasamycin.结论本文为吉他霉素的质量控制提供了一种新方法.Methods By using analytical column, electrospray ionization and positive ion monitoring components of kitasamycin we...