电梯嘎吱一声停在了一层。The elevator creaked to a halt at the ground floor.她胳膊下侧有一层肥肉一颤一颤的。A roll of fat jiggled on the underside of her arm.池塘表面有一层黏腻腻的污泥。There was an unappealing film of slime on top of the pond....
Her mother has an underactive adrenal gland.她的母亲肾上腺机能不全.This is a snake's poison gland.这就是蛇的毒腺。The duct that drains the entire gland is the main duct.整个腺体的导管汇总在一起称主导管....