【词汇讲解】
1.sterilized adj. 无菌的，消毒的，绝育的
如：He pricked the blister on his heel with a sterilized needle.
他用一根消过毒的针扎破他脚後跟上的水泡。
After her fourth child she decided to be/have herself sterilized.
她生了第四个孩子後决定做绝育手术。
2.slip off 很快地把衣服脱掉，滑倒，悄悄溜走
如：Slip off your shirt and I'll take your blood pressure.
快把衬衣脱了，我来量量你的血压。
He wake to find that his quilt have slip off the bed.
他醒来发现被子从床上滑下来了。
3.canner n. 罐头制造商
4.secure adj. 安全的，牢靠的，稳妥的
如：The little boy felt secure near his parents.
那小男孩在父母身边感到安心。
It may be many years before the new company can gain a secure foothold in the market.
也许要经过若干年这家新公司才能在市场上取得稳固的立足点。