1.absence 缺乏;不存在
The test shows an absence of heterozygosity.
检测结果显示DNA缺少杂合性 。
2.conventional 常规的
Changing conventional processes is always a challenge.
改变传统工艺始终是一个挑战 。
3.harbour 藏匿;庇护
Your dishcloth can harbour many germs.
洗碗布中可能藏有很多病菌 。
4.spick and span 一层不染
The boss likes everything spick and span in the office.
老板喜欢办公室里一切都井井有条 。