查询词典 It's hard to say

Brace up the foreyard：升船头帆

- Hard to starboard. - Hard to starboard!|- 右满舵 - 右满舵! | Brace up the foreyard!|升船头帆! | Hard to starboard!|右满舵!

half-hard rubber：半硬质胶

half-hard 中硬金属 | half-hard rubber 半硬质胶 | half-hard steel 半硬钢

Hard handoff：理切换

硬环境:hard environment | 理切换:Hard handoff | 强更新:Hard Update

hard and fast：不可违逆的

hard 硬的 | hard-and-fast 不可违逆的 | hard-bitten 不易对付的

hard and fast rule：硬性规定

硬X射线 hard X-ray | 硬性规定 hard-and-fast rule | 硬玻璃膨胀计 hard-glass dilatometer

hard and fast rule：硬性规则

hard X rays 硬X射线 | hard-and-fast rule 硬性规则 | hard-and-fast rules 硬性规定

hard and fast ashore：牢固搁浅

hard alloy 硬质合金 | hard and fast ashore 牢固搁浅 | hard and fast 牢固搁浅

These are hard and fast rules：这些规定不能变动

It was a hard and fast contract. 那是一份丝毫不得变更的合约. | These are hard and fast rules. 这些规定不能变动. | hard at it专心致志于某事:

hard cash：硬币

hard by 在近处 | hard cash 硬币 | hard cheese 不幸

hard cheese：不幸

hard cash 硬币 | hard cheese 不幸 | hard core 核心硬件

red ensign：英国商船旗

red dog 煤坑废料 | red ensign 英国商船旗 | red flag 红旗

isoseismal：等震度的

等震的 isoseismic | 等震度的 isoseismal | 等震线 homoseism