Under all conditions, sheltered or storm-beaten, well-fed or ill-fed, this tree is singularly graceful in habit.

在任何情况下，无论是避风还是暴风雨，营养充足还是营养不良，这棵树的习性都异常优雅。

The FDA approval means it needs to be safe enough for a small kid to take it, put it in front of his eye or something else and still it needs to be safe under all conditions.

FDA 的批准意味着它需要足够安全，小孩都能使用，能够放在他的眼前或其他地方，并且在任何情况下都是安全的。