2.Cycling around France at the age of 75 is no mean feat.
以75岁高龄骑自行车环法真壮举。
3.Dragging the fully laden boat across the sand dunes was no mean feat.
将满载货物船拖过沙丘件了不起事。
4.The feat silkworm room environment condition, can strengthen the silkworm son corporeity, repress the pathogeny breeding indoor,lower the outbreak rate, and raise the yield of the cocoon.
适宜蚕室环境条件,可增强蚕儿体质,抑制其小环境内病原物繁殖,降低发病率,提高茧产量。
5.The successful ditching of the stricken aircraft in the Hudson River, without a single loss of life among the 155 people on board, was an extraordinary feat of airmanship.