Lacks confidence and poise is nervous and ill at ease.
信心不足,不够自信,精神紧张,心神不定。
All products have to pass strict inspection before they go out.
所有产品出厂前必须要经过严格检查。
After all, all living creatures live by feeding on something else, whether it be plant or animal, dead or alive, and it is only by chance that such a fate is avoided.