With the newest kind of surgery, doctors make a small cut in the patient's belly bottom(button). A camera is placed through the hole to help *(guide) the surgical instrument.
有了这种最新的手术，医生在病人的肚脐上开一个小口。一个照相机通过这个开口放进去帮助指导手术仪器。
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Reminiscent of a vintage instrument this finish typically suits a husky, smoky type of sound, but can also perform with great percussive power at the bottom end.